PATENT DOCUMENT

Publication Number: US-10539984-B2
Application Number: US-201615234629-A
Country: US
Kind Code: B2

Title: Computer housing

Abstract:
A desktop computing system having at least a central core surrounded by housing having a shape that defines a volume in which the central core resides is described. The housing includes a first opening and a second opening axially displaced from the first opening. The first opening having a size and shape in accordance with an amount of airflow used as a heat transfer medium for cooling internal components, the second opening defined by a lip that engages a portion of the airflow in such a way that at least some of the heat transferred to the air flow from the internal components is passed to the housing.

Claims:
What is claimed is: 
     
       1. A desktop electronic device, comprising:
 a multi-part enclosure comprising: 
 a tubular shaped first part having an aperture capable of passing audible sound, wherein the tubular shaped first part defines a first internal volume and is characterized by (i) a longitudinal axis, (ii) an overall shape that is symmetric about the longitudinal axis, and (iii) a radius that is perpendicular to the longitudinal axis, the radius having: a first radial length that defines a first opening at a first end of the tubular shaped first part, a constant radial length at a central portion of the tubular shaped first part, and a second radial length that is less than the constant length and that defines a second opening at a second end of the tubular shaped first part, the second end opposite the first end, and 
 a circular shaped second part that defines a second internal volume separate from the first internal volume, the circular shaped second part being centered at and perpendicular to the longitudinal axis and is characterized by a radius having a radial length that is less than the constant radial length; and 
 components separate from the tubular shaped first part and supported by the circular shaped second part and that include: 
 a circular printed circuit board (PCB) having a radio frequency (RF) antenna in communication with an RF circuit, the RF antenna being used to facilitate a wireless communication over a wireless communication channel, the circular PCB being located within the first internal volume and having a circular active surface on which are mounted electronic circuits at least one of which is a wireless radio frequency (RF) circuit, wherein the circular active surface is centered at and perpendicular to the longitudinal axis and is located in proximity to the first opening, and 
 a rectangular PCB located in the second internal volume and having electronic circuits mounted thereto, wherein the rectangular PCB is perpendicular to and centered at the longitudinal axis. 
 
     
     
       2. The desktop electronic device as recited in  claim 1 , wherein at least one of the components is capable of producing the audible sound. 
     
     
       3. The desktop electronic device as recited in  claim 1 , wherein the rectangular PCB is characterized as having a major dimension that is perpendicular to and longer than a minor dimension, the rectangular PCB is positioned such that the major dimension is perpendicular to the longitudinal axis and both the major and minor dimensions are parallel to the radius. 
     
     
       4. The desktop electronic device as recited in  claim 1 , wherein the circular shaped second part includes an annular ring shaped portion. 
     
     
       5. The desktop electronic device as recited in  claim 1 , wherein the circular PCB is a first circular PCB and wherein the electronic circuits are first electronic circuits and wherein the components further include:
 a second circular PCB that is perpendicular to the longitudinal axis and wherein at least a portion of which comprises a second active surface on which are mounted second electronic circuits. 
 
     
     
       6. The desktop electronic device as recited in  claim 5 , wherein the second electronic circuits include a power supply circuit. 
     
     
       7. The desktop electronic device as recited in  claim 1 , further comprising:
 an air moving component capable of moving air in a direction aligned with the longitudinal axis. 
 
     
     
       8. The desktop electronic device as recited in  claim 7 , wherein the air moving component is arranged perpendicular to and centered at the longitudinal axis and in proximity to the first opening. 
     
     
       9. A stand-alone portable electronic device comprising:
 a cylindrically shaped enclosure having an aperture suitable for passage of audible sound, the cylindrically shaped enclosure having a shape that is characterized as: (i) being symmetric about a longitudinal axis, and (ii) having a radius having a fixed radial length at a first end of the enclosure and a constant radial length at a central portion of the enclosure, and wherein a second opening is located at a second end, opposite the first end, and having a radius less than the constant radial length in accordance with the fixed radial length; 
 a circular base centered at and perpendicular to the longitudinal axis and separably attached to the enclosure at the second opening, wherein the circular base is capable of supporting the enclosure in a vertical orientation on a horizontal surface; and 
 components positioned within an internal volume defined by the enclosure and supported by the circular base and that include: 
 a rectangular printed circuit board (PCB) having a shape defined by a major dimension and a minor dimension that is shorter than the major dimension, wherein the rectangular PCB is (i) centered at and perpendicular to the longitudinal axis, and (ii) parallel to the radius; 
 a circular PCB that is (i) centered at and perpendicular to the longitudinal axis, and (ii) axially disposed from and perpendicular to the rectangular PCB, and 
 a radio-frequency (RF) antenna capable of facilitating communication over a wireless communication channel. 
 
     
     
       10. The stand-alone portable electronic device as recited in  claim 9 , comprising:
 an air moving component that is capable of moving air in a manner that is aligned with the longitudinal axis such that acoustic energy associated with the moving air passes through an opening to an environment external to the cylindrically shaped enclosure. 
 
     
     
       11. The stand-alone portable electronic device as recited in  claim 9 , wherein the circular PCB includes an active surface on which are mounted electronic circuits. 
     
     
       12. The stand-alone portable electronic device as recited in  claim 11  wherein the circular PCB is a first circular PCB and wherein the electronic circuits are first electronic circuits and wherein the components further include:
 a second PCB that is perpendicular to the longitudinal axis and wherein at least a portion of which comprises a second active surface on which are mounted second electronic circuits. 
 
     
     
       13. A stand-alone portable electronic device for use on a horizontal surface, the stand-alone portable electronic device comprising:
 a tubular shaped enclosure characterized as having (i) a longitudinal axis, (ii) an overall shape that is symmetric about the longitudinal axis, and (iii) a radius having a fixed radial length and that is perpendicular to the longitudinal axis, the tubular shaped enclosure having an aperture capable of passing acoustic energy from an internal volume defined by the tubular shaped enclosure to an environment external to the tubular shaped enclosure; and 
 a circular base centered at and perpendicular to the longitudinal axis has a radius less than the fixed radial length, the circular base is separably coupled to the tubular shaped enclosure and that supports operational components located within the internal volume; 
 a rectangular printed circuit board (PCB), wherein the rectangular PCB is positioned (i) parallel to the longitudinal axis, (ii) perpendicular to the radius and (iii) radially displaced from the longitudinal axis a distance less than the radial length, 
 a circular PCB that is (i) centered at the longitudinal axis, and (ii) axially disposed from and perpendicular to the rectangular PCB, and 
 a radio-frequency (RF) antenna capable of facilitating communication over a wireless communication channel. 
 
     
     
       14. The stand-alone electronic device as recited in  claim 13 , wherein the circular PCB includes an active surface on which are mounted electronic circuits. 
     
     
       15. The stand-alone electronic device as recited in  claim 13  wherein the circular PCB is a first circular PCB having a first active surface and wherein the components further include:
 a second PCB that is perpendicular to the longitudinal axis and having a second active surface on which are mounted additional electronic circuits.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 14/945,064, filed Nov. 18, 2015 and entitled “COMPUTER HOUSING”, which is a continuation of U.S. application Ser. No. 14/297,578, filed Jun. 5, 2014, now U.S. Pat. No. 9,218,028 and entitled “COMPUTER HOUSING”, which claims the benefit of priority under 35 U.S.C § 119(e) to: 
     (i) U.S. Provisional Application No. 61/832,698, filed Jun. 7, 2013 and entitled “COMPUTER ARCHITECTURE RESULTING IN IMPROVED COMPONENT DENSITY AND THERMAL CHARACTERISTICS”; 
     (ii) U.S. Provisional Application No. 61/832,709, filed Jun. 7, 2013 and entitled “INTERNAL COMPONENT AND EXTERNAL INTERFACE ARRANGEMENT FOR A COMPACT COMPUTING DEVICE”; 
     (iii) U.S. Provisional Application No. 61/832,695, filed Jun. 7, 2013 and entitled “ENCLOSURE/HOUSING FEATURES OF A COMPUTER FOR IMPROVED THERMAL PERFORMANCE AND USER EXPERIENCE”; and 
     (iv) U.S. Provisional Application No. 61/832,633, filed Jun. 7, 2013 and entitled “THERMAL PERFORMANCE OF A COMPACT COMPUTING DEVICE”, each of which is incorporated herein by reference in its entirety for all purposes. 
     This application is related to: 
     (i) International Patent Application No. PCT/US2014/041165, filed Jun. 5, 2014 and entitled “COMPUTER SYSTEM”; 
     (ii) International Patent Application No. PCT/US2014/041160, filed Jun. 5, 2014 and entitled “COMPUTER THERMAL SYSTEM”; and 
     (iii) PCT International Patent Application No. PCT/US2014/041153, filed Jun. 5, 2014 and entitled “COMPUTER INTERNAL ARCHITECTURE”, each of which is incorporated herein by reference in its entirety for all purposes. 
    
    
     TECHNICAL FIELD 
     The embodiments described herein relate generally to compact computing systems. More particularly, the present embodiments relate to organization of structures and components and fabrication of enclosures suitable for compact computing systems such as a desktop computer. 
     BACKGROUND 
     The outward appearance of a compact computing system, including its design and its heft, is important to a user of the compact computing system, as the outward appearance contributes to the overall impression that the user has of the compact computing system. At the same time, the assembly of the compact computing system is also important to the user, as a durable assembly will help extend the overall life of the compact computing system and will increase its value to the user. 
     One design challenge associated with the manufacture of compact computing systems is the design of the outer enclosures used to house the various internal components. This design challenge generally arises from a number of conflicting design goals that include the desirability of making the outer enclosure or housing lighter, thinner, stronger, and aesthetically pleasing. Lighter housings or enclosures tend to be more flexible and therefore have a greater propensity to buckle and bow, while stronger and more rigid enclosures tend to be thicker and carry more weight. Unfortunately, the increased weight of thicker enclosures may lead to user dissatisfaction with respect to the overall appearance in that they may appear heavy and ill suited for placement on a desktop or in a server rack. However, thinner enclosures can be prone to bowing that may damage internal parts or lead to other failures. Furthermore, the overall appearance of the compact computing system must be aesthetically pleasing as few consumers desire to own or use a device that is perceived to be ugly or unsightly. Due to such considerations, compact computing system enclosure materials are typically selected to provide sufficient structural rigidity while also meeting weight constraints as well as cooperate with thermal systems to maintain operational components within acceptable thermal limits while maintaining any aesthetic appeal worked into materials that meet these criteria. 
     SUMMARY 
     The present application describes various embodiments regarding systems and methods for providing a lightweight and durable compact computing system. 
     An enclosure for a computer system includes a housing having a housing thickness and having a longitudinal axis and comprises a cross section having a center point at a position on the longitudinal axis and that encloses an internal volume that is symmetric about the longitudinal axis. 
     Other apparatuses, methods, features and advantages of the invention will be or will become apparent to one with skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The included drawings are for illustrative purposes and serve only to provide examples of possible structures and arrangements for the disclosed inventive apparatuses and methods for providing compact computing systems. These drawings in no way limit any changes in form and detail that may be made to the invention by one skilled in the art without departing from the spirit and scope of the invention. The embodiments will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements. 
         FIG. 1  shows a perspective view of an embodiment of a compact computing system in a stand-alone and upright configuration. 
         FIG. 2  shows a perspective view of another embodiment of a compact computing system in accordance with the described embodiments. 
         FIG. 3  shows a perspective view of a general system layout of the compact computing system of  FIG. 2 . 
         FIG. 4A  shows an exploded view of a compact computing system including a housing and a central core, according to some embodiments. 
         FIG. 4B  shows a partial view of an internal portion of the housing for a compact computing system, according to some embodiments. 
         FIG. 4C  shows a cross sectional view of a housing for a compact computing system, according to some embodiments. 
         FIG. 5  shows a flowchart detailing a method for assembling a compact computing system inside a housing, in accordance with the described embodiments. 
         FIG. 6A  shows a rack arrangement suitable for supporting a number of the compact computing systems. 
         FIGS. 6B-6D  shows various other rack arrangements suitable for supporting a number of compact computing systems. 
         FIG. 7  is a flowchart detailing a process in accordance with the described embodiments. 
         FIG. 8  is a block diagram of a computing system suitable for use with the described embodiments. 
     
    
    
     In the figures, elements having the same or similar reference numeral have the same or similar function and description. 
     DETAILED DESCRIPTION 
     Representative applications of apparatuses and methods according to the presently described embodiments are provided in this section. These examples are being provided solely to add context and aid in the understanding of the described embodiments. It will thus be apparent to one skilled in the art that the presently described embodiments can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the presently described embodiments. Other applications are possible, such that the following examples should not be taken as limiting. 
     The following relates to a compact computing system that can be configured as a stand-alone unit for placement upon or under a desk or other work area (also referred to as a desktop computer). The compact computing system can also be configured as part of a group of networked or otherwise interconnected computers. In any case, the compact computing system can include a number of electronic components including at least a central processing unit (CPU), and a graphics processing unit (GPU), and other primary and secondary components such a solid state memory devices, wireless components and so on. One or more internal electronic component boards can be shaped to match a surface of the outer enclosure of the compact computing system, including for example, a circular shape to match a top or bottom of a cylinder, or a curved shape to match a segment of an arc conforming to a curved exterior surface of the outer enclosure. In representative embodiments as described herein, the compact computing system can be cylindrical in shape and can be configured to arrange a number of rectangular electronic components as a central core providing a form factor characterized as having a high component packing density (a number of components per available volume). The resulting compact computing device can provide a high computing power density in a small, lightweight, transportable form factor. In some embodiments, the compact computing device can also be coupled to other compact computing devices to form a multi-computer system that can be used as a server computer system (such as in a data farm) or as a network computing system having each compact computing device as a node (or nodes). 
     For example, in the embodiments described herein, the compact computing system can be cylindrical and be configured in such a way that the rectangular electronic components can be assembled as a central core with a form factor having a high component packing density (number of components per available volume). The central core can also have a cylindrical shape in concurrence with a housing having an annular cylindrical shape along the lines of a tube. A thermal management system can utilize an air mover that can be move copious amounts of air axially through an interior volume defined by the housing that can be used to cool a central core of the compact computing system in a manner that is both efficient and quiet. Generally speaking, the air mover can provide a volume of air per unit time in the form of an airflow of about 15-20 cubic feet per minute (CFM) when major components such as a central processing unit (CPU) and/or a graphics processing unit (GPU) are not being heavily utilized. However, when processing demand increases, the air mover can compensate for any increase in heat generated by ramping up the airflow. For example, in response to an increase in demand for processing resources from either or both the CPU and/or GPU, the air mover can increase the airflow from about 15-20 CFM to about 25-30 CFM (at about room temperature of 25° C.) with an acoustic output of about 35 dbA (it should be noted that these acoustic levels are only experienced when the air mover is performing at a higher end of its operating range during a period of high demand and not during more normal operation). It should be noted that at higher ambient temperature (35° C.), the air mover can ramp the airflow even further to compensate for the reduced thermal transfer at the higher ambient temperature. In this situation, the air mover can ramp the airflow to about 35 to 40 CFM or more having a higher acoustic output of 40 dbA or more. 
     The air mover can occupy a substantial amount of available cross sectional real estate defined by the housing providing an axial airflow substantially free of radial airflow components. Moreover, components that make up the central core can be aligned in an axial manner that maximizes an amount of surface area in thermal contact with the axial airflow. Furthermore, the design and layout of the components can also be axial in nature further enhancing the available heat transfer capability and component packing density that leads to higher computing power density (computing operations per available volume). For example, an integrated circuit can be designed to have a power input node (s) at a first end of the integrated circuit and data I/Os at an opposite end of the integrated circuit. 
     The compact computing system can also be coupled to other compact computing systems to form a multi-computer system that can be used as a server computer system (such as in a data farm) or as a network computing system having each compact computing system as a node (or nodes). One advantage of the compact size and shape of the compact computing system is that a simple racking system (along the lines of a wine rack configuration) can be used to position the multiple connected compact computing systems. For example, the individual compact computing systems can be placed at an angle within a rack arrangement in such a way as to provide easy access to inputs as well as outputs for connection to other devices without restricting the flow of air into or out of the compact computing system. In some cases, the individual compact computing systems can be stacked in an alternating arrangement that also does not restrict either air intake or air exhaust. These and other general subjects are set forth in greater detail below. 
     In a particular embodiment, the compact computing system can include a housing that can surround and protect the central core. The housing can be easily removed for servicing or other access. The housing can be formed of aluminum having an aluminum oxide (alumina) layer that both protects the housing and promotes radiative cooling. The aluminum oxide/anodization layer also improved heat rejection from external surface of the housing by increasing its infrared radiative emissivity. Aluminum has a number of characteristics that make it a good choice for the housing. For example, aluminum is a good electrical conductor that can provide good electrical ground and it can be easily machined and has well known metallurgical characteristics. The superior conductivity of aluminum provides a good chassis ground for internal electrical components arranged to fit and operate within the housing. The aluminum housing also provides a good electromagnetic interference (EMI) shield protecting sensitive electronic components from external electromagnetic energy as well as reducing leakage of electromagnetic (EM) energy from the compact computing system. A layer of aluminum oxide can be formed on the surface of the aluminum in a process referred to as anodization. In some cases, the layer of aluminum oxide can be dyed or otherwise imbued with a color(s) to take on a specific color or colors. It should be noted that since aluminum oxide is a good electrical insulator, either the interior surface of the housing is masked during the anodization process to preserve access to the bulk material or selected portions of the layer of aluminum oxide are removed to provide good electrical contacts. 
     In one embodiment, the cylindrical housing can take the form of a single piece housing (monolithic). In this way, the cylindrical housing appears seamless and homogenous. The cylindrical shape of the housing maximizes the ratio of internal volume and enclosure volume. In one embodiment, the housing is formed of a single billet of a strong and resilient material such as aluminum that is surface treated (anodized) to provide an aesthetically pleasing appearance. A top portion of the cylindrical housing is formed into the lip used to engage a circumferential portion of the airflow that travels in an axial direction from the first opening to the second opening at which point the airflow passes to an external environment. The lip can also be used to transport the compact computing system using for example, a hand. 
     In a particular embodiment, a compact computing system can be assembled using a bottom up type assembly. Initial assembly operations can include installing a vapor chamber on each side of a triangular central core structure. In the described embodiments, the vapor chamber can take on the form of a two phase (vapor/solid) heat spreader. In a particular implementation, the core can take the form of an aluminum frame secured to and cradled within a fixture. High power components, such as a graphic processor unit (GPU) and/or central processor unit (CPU) can be mounted directly to the vapor chambers. 
     A good thermal contact can be formed between the vapor chambers and the high power components using a thermally conductive adhesive, paste, or other suitable mechanism. A main logic board (MLB) can be pressed against a CPU edge connector followed by installation of a GPU flex(es). Once the MLB is seated and connected to the CPU and GPU, memory modules can be installed after which an inlet assembly can be installed and coupled to the core structure using fasteners. An input/output (I/O) assembly that has been independently assembled and pre-tested can be installed after which a power supply unit (PSU) control cable can be connected to the MLB followed by connecting the DC PSU power using a bus bar system. An exhaust assembly can be installed followed by connecting a RF antenna flex to an I/O board. 
     As noted above, the housing can take on many forms, however, for the remainder of this discussion and without loss of generality, the housing takes on a cylindrical shape that encloses and defines a cylindrical volume. In the described embodiment, the housing and the corresponding cylindrical volume can be defined in terms of a right circular cylinder having a longitudinal axis that can be used to define a height of the right circular cylinder. The housing also can be characterized as having a circular cross section having a center point on the longitudinal axis. The circular cross section can have a radius that extends from the center point and is perpendicular to the longitudinal axis. In one embodiment, a thickness of the housing can be defined in terms of a relationship between an inner radius (extending from the center point to an interior surface of the housing) and an outer radius (extending from the center point to an exterior surface of the housing). 
     The housing can have a thickness tuned to promote circumferential and axial conduction that aids in the spreading out of heat in the housing thereby inhibiting formation of hot spots. The separation between the central core and the housing allows an internal peripheral airflow to cool the housing helping to minimize a touch temperature of the housing. In one embodiment, the housing can be mated to a base unit that provides, in part, a pedestal used to support the compact computing system on a surface. In one embodiment, the base unit can be a removable base unit. The housing can include a first opening having a size and shape in accordance with the base unit. The first opening can be a full perimeter air inlet whose circular design allows for functionality even in those situations where the compact computing system is located in a corner or against a wall. In an assembled configuration, the base unit corresponds to a base of the cylinder. The first opening can be used to accept a flow of air from an external environment passing through vents in the base unit. The amount of air that flows into the housing is related to a pressure differential between the external environment and an interior of the compact computing system created by an air mover assembly near a second opening axially disposed from the first opening. A thermal management system can utilize the air mover that can be move copious amounts of air axially through an interior volume defined by the cylindrical housing that can be used to cool the central core in a manner that is both efficient and quiet. 
     In one embodiment, an air exhaust assembly can take the form of a fan assembly. The fan assembly can be an axial fan assembly configured to axially move air through the housing by creating the abovementioned pressure differential. The fan assembly can also be configured as a mixed air fan assembly providing both axial and centrifugal components to air as it exits the fan assembly. In one embodiment, the fan assembly can occupy a substantial portion of available cross sectional area of the cylindrical housing. For example, the fan assembly can account for at least 85% or thereabouts of an available cross sectional area of an interior of the housing. In any case, air can enter through the vents in the base unit. In one embodiment, a baffle arrangement can bifurcate (split) the airflow in such a way that some of the airflow remains within a central column separate from a peripheral airflow located away from the central column. The central column of air can thermally engage a heat sink structure on which internal components can be mounted. In order to optimize thermal transfer, components can be configured and mounted axially (in the direction of air flow) in order to maximize an amount of air engaging the components. In this way, both the central airflow and the peripheral airflow can be used to cool the central core and still maintain the housing at an acceptable temperature. 
     The housing can include an exhaust lip at the second opening. The exhaust lip can be arranged to engage a portion of the air as it flows out of the second opening having the effect of directing the airflow (and sound) away from the user. The exhaust lip can also provide an integrated handle structure suitable for grasping the compact computing system. The housing can have a thickness that is tuned by which it is meant that the housing has a varying thickness in which a portion of the housing nearest the exhaust lip is thicker than that portion away from the exhaust lip. The thickness of the housing can be varied in a manner that promotes an axial and circumferential conduction of heat in the housing that promotes a more even distribution of heat that inhibits the formation of hot spots in the housing. 
     A good electrical ground (also referred to as a chassis ground) can be used to isolate components that emit significant electromagnetic energy (such as a main logic board, or MLB) from those circuits, such as wireless circuits, that are sensitive to electromagnetic energy. This isolation can be particularly important in the compact computing system due to the close proximity of components that emit electromagnetic energy and those components that are sensitive to electromagnetic energy. Moreover, the housing can include conductive material (such as a gasket infused with conductive particles) that can be mated to a corresponding attachment feature on the base unit completing the formation of a Faraday cage. The Faraday cage can block electromagnetic energy (both internal and external) effectively shielding the external environment from EMI generated by the compact computing system (and the internal environment from externally generated EMI). In order to complete the Faraday cage, air vents in the base unit can be sized to effectively block electromagnetic energy having selected wavelength. More specifically, the wavelength of electromagnetic energy blocked by the vents can be consistent with that emitted by active components with the compact computing system. 
     In one embodiment, the compact computing system can include a sensor configured to detect whether or not the housing is properly in place and aligned with respect to the internal components. Proper placement of the housing is important due to the key role that both the shape and configuration of the housing has with respect to thermal management of the compact computing system as well as completing the Faraday cage discussed above. The compact computing system can include an interlock system that detects the presence and proper alignment of the housing with respect to the internal components. Only when the proper alignment is detected, the interlock system will allow the internal components to power up and operate in a manner consistent with system specification. In one embodiment, the interlock system can include a magnetic element detectable by a Hall effect sensor only when the housing is in a proper position and alignment with respect to the internal components. 
     Due at least to the strong and resilient nature of the material used to form the housing; the housing can include a large opening having a span that does not require additional support structures. Such an opening can be used to provide access to an input/output panel and power supply port. The input/output panel can include, for example, data ports suitable for accommodating data cables configured for connecting external circuits. The opening can also provide access to an audio circuit, video display circuit, power input, etc. In one embodiment, selected data ports can be illuminated to provide easier access in reduced lighting. 
     These and other embodiments are discussed below with reference to  FIGS. 1-8 . However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the invention extends beyond these limited embodiments. 
       FIG. 1  shows a perspective view of compact computing system  100 . Compact computing system  100  can have a shape defined by housing  102 . In the described embodiments, housing  102  can be cylindrical in shape having a first opening  104  characterized as having diameter d 1 . More specifically, housing  102  can take the form of a circular right cylinder having a longitudinal axis that extends long a centerline of a central volume enclosed by housing  102 . Housing  102  can be characterized as having a circular cross section having a center point coincident with a corresponding point on the longitudinal axis. The circular cross section has a radius that is perpendicular to the longitudinal axis and extends outwardly therefrom. Accordingly, thickness t of housing  102  (more specifically a housing wall) can be defined as a difference between an outer radius r o  associated with an exterior of housing  102  and inner radius r i  associated with an interior surface of housing  102 . Moreover, housing  102  can include second opening  106  axially disposed from first opening  104  having diameter d 2  defined in part by exhaust lip  108  where d 1  is at least equal to or greater than d 2 . Housing  102  can be formed from a single billet of aluminum in the form of a disk that can be extruded in a manner forming exhaust lip  108 . Thickness t of housing  102  can be tuned to mitigate hot spots. In this regard, housing  102  can have a non-uniform thickness t. In particular, portion  110  near exhaust lip  108  can have a first thickness of about 4-6 mm that then changes to a second thickness associated with portion  112  that is reduced from the first thickness and located away from exhaust lip  108 . In this way, portion  110  can act as both an integrated handle used to grasp compact computing system  100  and as a feature that absorbs and conducts thermal energy transferred from a portion of exhaust airflow  114  that engages exhaust lip  108 . Through radiative and conductive heat transfer and by limiting the amount of heat transferred to portion  112 , the formation of local hot spots in housing  102  can be mitigated. Tuning the thickness of housing  102  can be accomplished using, for example, an impact extrusion process using a metal disk that is then machined to the desired thickness profile. The metal disk may be made of aluminum, titanium, and any other metallic material that provides the strength, thermal conductivity, and RF-isolation desired. The extrusion process forms a cylinder that is machined in the exterior portion and in the interior portion to acquire the desired cross sectional profile and also the desired visual appeal from the exterior. 
     Compact computing system  100  can further include base unit  116 . Base unit  116  can be used to provide support for compact computing system  100 . Accordingly, base unit  116  can be formed of strong and resilient material along the lines of metal that can also prevent leakage of electromagnetic (EM) energy from components within compact computing system  100  that radiate EM energy during operation. Base unit  116  can also be formed of non-metallic compounds that can nonetheless be rendered electrically conductive using, for example, electrically conductive particles embedded therein. In order to assure that any electromagnetic energy emitted by components within compact computing system  100  does not leak out, lower conductive gasket  118  can be used to complete a Faraday cage formed by base unit  116  and housing  102 . Upper conductive gasket  120  (shown in more detail in  FIG. 3 ) can be disposed on the interior surface of housing  102  near a lower edge of portion  110 . Use of conductive gaskets  118  and  120  to complete the Faraday cage can increase EMI isolation by about 20 dB. 
     Base unit  116  can also include vents  122 . Vents  122  can be dual purpose in that vents  122  can be arranged in base unit  116  in such a way that a suitable amount of air from an external environment can flow through vents  122  in the form of intake airflow  124 . In one embodiment, intake airflow  124  can be related to a pressure differential across vents  122  created by an air mover disposed with compact computing system  100 . In one embodiment, the air mover can be disposed near second opening  106  creating a suction effect that reduces an ambient pressure within housing  102 . In addition to facilitating intake airflow  124 , vents  122  can be sized to prevent leakage of electromagnetic energy there through. The size of vents  122  can be related to a wavelength corresponding to electromagnetic energy emitted by internal components. 
     It should be noted that although a cylindrical housing is shown, that nonetheless any suitably shaped housing can be used. For example, housing  102  can be have a rectangular cross section, a conical cross section (of which the circle is only one), or the cross section can take the form of an n-sided polygon (of which the rectangle is one in which n=4 and a triangle where n=3) where n is an integer having a value of at least 3. 
       FIG. 2  shows another embodiment of compact computing system  100  in the form of compact computing system  200 . It should be noted that compact computing system  200  can be substantially the same or similar as compact computing system  100  with respect to size and shape of housing  102 . Compact computing system  200  can include housing  202  that can differ from housing  102 . In this embodiment, housing  202  can include opening  204  having a size and shape in accordance with interface panel  206 . Interface panel  206  can include various ports used for communication of data between compact computing system  200  and various external circuits. For example, interface panel  206  can include audio jack ports  208  that can be used to provide an audio stream to an external audio circuit, such as a headphone circuit, audio processor, and the like. A set of data ports  210  can be used to transfer data of various forms and/or power between an external circuit(s) and compact computing system  200 . Data ports  210  can be used to accommodate data connections such as USB, Thunderbolt®, and so on. For example, the set of data ports  210  can include data ports  212  in the form of USB ports whereas data ports  214  can take the form of Thunderbolt® ports. In this way, compact computing system  200  can be interconnected to other computing systems such as data storage devices, portable media players, and video equipment, as well as to form a network of computing systems. Furthermore, data ports  216  can take the form of Ethernet ports suitable for forming communication channels to other computing systems and external circuits whereas data port  218  in the form of an HDMI port can be used for audio/video (AV) data transport. In this way, data port  218  can be used to stream high speed video between compact computing system  200  and an external video monitor or other video processing circuitry. Accordingly, interface panel  206  can be used to form connections to a large number and variety of external computing systems and circuits which is particularly useful in those situations where a large amount of computing resources are required without the high capital costs associated with large mainframe type computers. Moreover, the compact size and shape of compact computing system  200  also lends itself to space efficient computing networks, data farms, and the like. 
     Interface panel  206  can be made of a non-conductive material to electrically insulate each of the ports from one another and from housing  202 . Accordingly, interface panel  206  may include a plastic inlay dyed to provide a cosmetic appeal to computing system  200 . For example, in some embodiments interface panel  206  is dyed with a black or dark tint. Below the surface of interface panel  206 , a conductive web supported by a conductive gasket maintains a Faraday cage for RF and EMI insulation formed between housing  202  and upper and lower conductive gaskets ( 118 ,  120 ) located at an interior surface of housing  202 . Power on/off button  220  can be readily available to accept a user touch for initiating a power on sequence (including, for example, boot up process) as well as a power down sequence. Power input port  222  can be sized and shaped to accept a power plug suitable for transferring external power to operational components within housing  202 . In some cases, compact computing system  200  can include internal power resources (such as a battery) that can be charged and re-charged in accordance with power delivered by way of power input port  222 . 
     Housing interlock opening  224  can be accommodate housing interlock  226  used to secure housing  202  to internal structures of compact computing system  200 . Housing interlock  226  can take the form of a sliding latch or other such mechanism that can be manually engaged and disengaged. In this way, housing  202  can be easily removed in order to expose internal components and structures for servicing, for example. It should be noted that although not shown, a detection circuit can be used to detect if housing  202  is properly in place with respect to internal components and structures. This is particularly important since thermal management of compact computing system  200  relies to a large degree on the presence and proper placement of housing  202 . Therefore, it is desired that if it is determined that housing  202  is not in proper placement or alignment with respect to internal structures or components, then the detection circuit will prevent compact computing system  200  from operating, or at least operating at full capacity. In one embodiment, the detection circuit can include a magnetic sensor (such as a Hall Effect device) located to detect a magnet(s) disposed on housing  202  only when housing  202  is properly placed and aligned. 
     Removing housing  202  can expose a central core of compact computing system  200 . More specifically,  FIG. 3  shows central core  300  of compact computing system  200  absent housing  202 . Central core  300  can include a computing engine having computational components and a heat sink that can be used as a framework used to support at least some of the computational components. In this way, the computing engine takes on a form factor in accordance with that of the heat sink. Accordingly, the cylindrical shape of compact computing system  200  dictates the arrangement of various internal components as well as requirements for thermal management. For example, internal components can be arranged in an axial manner that optimizes both a component packing density (the number of operational components per available volume) and a computing power density (computing power per available volume). Moreover, the axial arrangement of internal components also optimizes an amount of heat that can be transferred to intake airflow  124  from the internal components and removed by way of exhaust airflow  114 . (It should be noted that, in general, the nature of compact computing system  200  provides that intake airflow  124  be about the same as that of exhaust air flow  114 .) 
     For example, memory module  302  can be formed of substrate  304  on which is mounted memory device  306 . Substrate  304  can have major axis  310  that is parallel to peripheral airflow  312 . In order to optimize heat transfer from memory device  306  to peripheral airflow  312 , memory device  306  can be mounted onto substrate  304  in a manner that maximizes a thermal transfer interface with peripheral airflow  312 . For example, each memory device can have a shape corresponding to a minor dimension (representing a width W, for example) and a major dimension (represented by a length L, for example). In the embodiment shown, the minor dimension W of memory device  306  is aligned generally parallel to peripheral airflow  312 . In this way, a thermal transfer interface formed between peripheral airflow  312  and memory device  306  disposed on memory module  302  can be optimized. It should also be noted that peripheral airflow  312  is constrained by the presence of housing  202  to flow in a peripheral region defined by an interior surface of housing  202  and central core  300 . Moreover, peripheral airflow  312  can be characterized as having substantially no radial components thereby further enhancing the heat transfer capability of peripheral airflow  312  with respect to memory module  302  and memory device  306 . In this way, the axial components of peripheral airflow  312  align with the minor dimension W of memory device  306 . It should be noted that intake airflow  124  is split into peripheral airflow  312  and central airflow  314  (not shown) that flows within a central portion of the central core  300 . Accordingly, peripheral airflow  312  and central airflow  314  are combined forming exhaust airflow  114  prior to passing out of compact computing system  200  through second opening  106 . 
     In the described embodiment, air mover  320  can be disposed in proximity to second opening  106  (cf.  FIG. 1 ). It should be noted that air mover  320  can combine the central airflow  314  and peripheral airflow  312  back into exhaust airflow  114 . Air mover  320  could include air exhaust assembly  322  that can be used to direct exhaust airflow  114  through second opening  106  at least some of which engages with exhaust lip  108  in a manner that facilitates the transfer of thermal energy generated by internal components of compact computing system  200 . Air exhaust assembly  322  includes vents  324  to allow exhaust airflow  114  to pass through. Cosmetic shield  326  can be used to cover operational components such as RF circuits and antenna. In this regard, cosmetic shield  326  can be formed of RF transparent material such as plastic, ceramic, or other non-conductive materials. 
     Due to the electrically conductive nature of housing  202 , housing  202  can be used as a chassis ground to provide a good ground for internal components. Accordingly, touch points  328  can be formed of conductive material and be used to form a conductive path between internal components and an interior of housing  202 . It should be noted that in order to make a good electrical connection, portions of housing  202  contacting touch points  328  are devoid of any non-conductive or insulating material (such as aluminum oxide). Therefore, in those cases where housing  202  has an aluminum oxide layer formed thereon, selected portions of the aluminum oxide are removed (or that portion of housing  102  masked during the anodization operation) to expose bulk material in those locations that come into contact with touch points  328 . As discussed above, in order to prevent leakage of electromagnetic energy, housing  202  and base unit  116  forms a Faraday cage. 
     In order to provide a user-friendly interaction with compact computing system  200 , central core  300  may include sensors such as accelerometers disposed on a plurality of points. Thus, as the user handles housing  202  in order to position compact computing system  200  in a convenient location and orientation, illumination patterns can be used to highlight aspects of interface panel  206  so as to make portions of interface panel  206  more visible to the user. Accordingly, some of the sensors may include light sensing devices to determine whether or not there is sufficient ambient illumination for the user to see selected items on interface panel  206 . 
       FIG. 4A  shows an exploded view  400  of compact computing system  200  including housing  202  and central core  300 . Central core  300  includes air mover  320 , computing engine  402 , and base unit  116 . Central core  300  may also include a Power Supply Unit (PSU)  404  coupled to interface panel  206  on the outside surface (facing the user). Computing engine  402  includes heat sink  406  for heat exchange with central air flow  314 . Heat sink  406  has a cross section can take the form of an m-sided polygon (of which the rectangle is one in which m=4 and a triangle where m=3) where m is an integer having a value of at least 3 (that may or may not be equal to n), the sides of the polygon forming a base for mounting processor boards such as CPU board and GPU boards. In other words, there are many geometric arrangements and relationships that are suitable between housing  102  and the central core  300 . Heat sink  406  may also include a plurality of vertical members (or ‘stanchions’)  408  along the vertex of the polygonal cross section. Vertical members  408  may include attachment features so that a fastener (e.g., through holes for a screw) may attach base unit  116  and air mover  320  to computing engine  402  to form central core  300 . 
     It should be noted that in a specific embodiment, heat sink  406  includes planar faces  407  that define a central thermal zone having a triangular cross section. Heat sink  406  also includes at least one cooling fin  409  that extends longitudinally at least part of a length of a corresponding planar face and spans the central thermal zone. Moreover, a center cooling fin extends from a first planar face to a junction of a second planar face and a third planar face and bisects the central thermal zone into a first region and a second region each having similar triangular cross sections. Furthermore, a first cooling fin different from the central cooling fin extends from the first planar face to the second planar face and spans the first region whereas a second cooling fin different from the first cooling fin and the central cooling fin extends from the first planar face to the third planar face and spans the second region. In the described embodiment, a first angle between the first cooling fin and the first planar face varies in accordance with a distance between the first cooling fin and the center cooling fin and a second angle between the second cooling fin and the first planar face varies in accordance with a distance between the second cooling fin and the center cooling fin such that a summation of the first angle and the second angle is equal to about 180°. 
     In some embodiments, computing engine  402  includes main logic board (MLB)  410 . Accordingly, MLB  410  may be formed in a circular printed circuit board (PCB), on a plane substantially orthogonal to the longitudinal axis of housing  202 . Computing engine  402  may have a polygonal cross-section (such as a triangle described above) such that the polygon is inscribed in the circular cross-section of housing  202 . For example, as shown in  FIG. 4A , computing engine  402  may have a triangular cross section wherein a base of the triangle corresponds with a diameter of the circular cross-section of housing  202  whereas the other two sides of the triangle each form a cord of the circular cross-section of housing  202 . Air mover  320  may include surface  412  for electrically coupling to upper conductive gasket  120 . Surface  412  can be laser etched to provide a good fit with upper conductive gasket  120  providing a good seal. Thus, RF antennas in the top portion of air mover  320  (enclosed by cosmetic shield  326 ) are electrically insulated from RF and EMI signals through the bottom side of air mover  320 . 
     Air mover  320  may include an indentation  416  for receiving the top edge of an interface structural wall  418 . Air mover  320  also includes a plurality of attachment features  420  for attaching air mover  320  to computing engine  402  (e.g., holes). Interface structural wall  418  supports interface panel  206  (cf.  FIG. 2 ). In order to insulate central core  300  from RF-radiation and EMI, interface structural wall  418  may include a layer of a conductive material, such as aluminum. In that regard, the layer of conductive material in interface structural wall  418  may have a thickness that provides adequate RF and EMI insulation. In some embodiments, structural wall  418  may include an aluminum layer that is no less than 10 μm thick. For example, the thickness of the aluminum layer in interface structural wall  418  may be about 100 μm, or more. Structural wall  418  includes a housing latch lead-in feature  422  and a housing latch locking feature  424 . Base unit  116  includes ribs  426 , and an indentation  428  for receiving the bottom edge of interface structural wall  418 . Indentation  428  may be a grooved portion along a top perimeter of base unit  116 . 
     Housing  202  can slide down over central core  300  and stops at base unit  116 , completing assembly of compact computing system  200 . On the bottom end of housing  202 , lower conductive gasket  118  couples housing  202  to base unit  116 . In some embodiments, lower conductive gasket  118  can have an outer diameter slightly greater than the inner diameter of housing  202 . Thus, once housing  202  is lowered down onto base unit  116 , the weight of housing  202  presses onto lower conductive gasket  118  resulting in a concentric bias to housing  202  that also secures housing  202  in position. Once in place, housing  202  causes formation of a peripheral air gap between vents  122  and the inside surface of housing  202 . 
     Housing  202  is an integral part of the thermal management operation of compact computing system  200  by forming in effect a chimney for peripheral airflow  312  (cf.  FIG. 3 ). In some embodiments, housing  202  also provides RF and EMI insulation to electronic components and circuitry in central core  300 . In that regard, some embodiments of compact computing system  200  are fully operational once housing  202  is in place. Accordingly, some embodiments may include sensors mounted on central core  300 . The sensors may be configured to enable the operation of compact computing system  200  only once housing  202  is secured in place. For example, the sensor may include a Hall effect sensor, the magnet placed in an interior face of housing  202 . Thus, when housing  202  is in place, the sensor is engaged and compact computing system  200  is enabled. Further, housing  202  provides a cosmetic profile to compact computing system  200  that makes it appealing for users, thus enhancing the marketability of the device. In some embodiments, housing  202  may also serve as a handle for compact computing system  200 , through exhaust lip  108  and the gap formed between air mover  320  and portion  110 . In that regard, housing  202  allows a user to carry compact computing system  200  from one place to another. The round, omnidirectional format of housing  202  also allows the user to rotate compact computing system  200  in order to have interface panel  206  face a desired direction. 
       FIG. 4B  shows a partial view of an internal portion of housing  202 , according to some embodiments. The interior surface of housing  202  includes an anodized aluminum layer such that the outside surface of housing  202  is electrically insulated from circuitry inside central core  300 . This enables the function of housing  202  as a Faraday cage for RF and EMI insulation of circuitry in central core  300 . In some embodiments, a ground may be coupled between the outside surface of housing  202  and central core  300 . Conductive stripes  430  may be laser etched on the anodized interior face of housing  202 . Thus, stripes  430  reveal a bulk portion of the conductive layer forming housing  202 . Conductive stripes  430  electrically couple touch points  328  to the conductive layer in housing  202 , aiding in the formation of a Faraday cage providing RF and EMI insulation to circuitry in central core  300 .  FIG. 4B  also illustrates bottom laser etched surface  432 . Latch  434  is actuated by the user to fit into latch locking feature  436  so that latch  434  meets locking feature  436 . By rotating housing  202  about central core  300 , a user may find the proper orientation prior to ‘dropping’ housing  202  into a ‘locked’ position. In some embodiments, a Hall effect sensor identifies that housing  202  is in a locked position and enables the circuitry to be powered ‘on’. It should be noted that an I/O illumination feature can activate (e.g., light up with illumination) even if housing  202  is not in a locked configuration. In some embodiments, sensors (such as an accelerometer) and I/O illumination circuitry can be active and operable regardless of whether housing  202  is in a locked configuration. In one embodiment, compact computing system  200  can be prevented from operating, or at least operating at full capacity, when housing  202  is not locked with respect to base  116 . 
       FIG. 4C  shows a cross sectional view  450  of housing  202  along line A-A of  FIG. 4A  for compact computing system  200 . Portion  110 , opening  106 , exhaust lip  108 , upper conductive gasket  120 , opening  104 , and heat sink  406  have been discussed in detail above. Accordingly, top portion  110  has a thickness t 1  that is greater than thickness t 2  of a portion  112  of housing  202 . A thicker top portion  110  reduces the thermal impact on housing  202  by airflow  114  as it engages portion  110  by way of exhaust lip  108 . In embodiments having housing  202  made of a thermally conductive material such as a metal (e.g., aluminum), a thicker layer of material increases the heat flow out of portion  110 .  FIG. 4C  shows an illustrative example where thickness t gradually decreases from a maximum value t 1  at exhaust lip  108  down to a reduced value t 2  in portion  112 . 
       FIG. 5  shows a flowchart detailing a method  500  for assembling a compact computing system inside a housing, in accordance with the described embodiments. The compact computer may include a central core having a processor assembly, a base unit, and an air mover (central core  300 , computing engine  402 , base unit  116 , and air mover  320 , cf.  FIGS. 3 and 4A ). Also, a compact computing system in method  500  may include a PSU and an interface structural wall holding an interface panel (e.g., PSU  404 , interface structural wall  418 , and interface panel  206 ). 
     Step  510  includes placing the processor assembly on the base unit. Step  510  may include attaching fasteners to fixedly couple the processor assembly to the base unit. For example, some embodiments may include attaching screws onto bosses placed on the base unit. The screws may pass through holes formed in the processor assembly, thus fixedly coupling the processor assembly to the base unit. In that regard, step  510  may include passing a screw through a slot hole in a vertical member of the processor assembly (e.g., vertical member  408 ). 
     Step  520  includes placing the PSU and the interface structural wall on the base unit. The base unit may include a grooved portion along a top perimeter so that a lower edge of the interface structural wall fits in. Step  520  may include attaching fasteners to fixedly couple the PSU and the interface panel on the base unit. Accordingly, some embodiments may include using screws as fasteners. 
     Step  530  includes placing the air mover on top of the processor assembly. As in the previous steps, step  530  may include attaching fasteners to fixedly couple the air mover to the processor assembly. Thus, step  530  may include passing a screw through a slot hole in a vertical member of the processor assembly. 
     Step  540  includes sliding the housing from the topside to the bottom side of the central core to rest on the base unit. The sliding down in step  540  takes place smoothly because a gasket placed on a top interior portion of the housing (e.g., upper conductive gasket  120 , cf.  FIG. 1 ) contacts the upper edge of the central core when the housing travel is completed. Also, the sliding down in step  540  may include using the vertical members in the processor assembly as guiding lines. Step  540  provides a concentric configuration between the housing and different components in the central core. In some embodiments, step  540  may include slightly rotating the housing around the central core. The rotation allows finding a guiding lead for a latch guide so that a latch in the housing may engage a locking feature in the central core. 
     In a particular embodiment, a compact computing system can be assembled using a bottom up type assembly. Initial assembly operations can include installing a vapor chamber on each side of a triangular central core structure. In the described embodiments, the vapor chamber can take on the form of a two phase (vapor/solid) heat spreader. In a particular implementation, the core can take the form of an aluminum frame secured to and cradled within a fixture. High power components, such as a graphic processor unit (GPU) and/or central processor unit (CPU) can be mounted directly to the vapor chambers. 
     A good thermal contact can be formed between the vapor chambers and the high power components using a thermally conductive adhesive, paste, or other suitable mechanism. A main logic board (MLB) can be pressed against a CPU edge connector followed by installation of a GPU flex(es). Once the MLB is seated and connected to the CPU and GPU, memory modules can be installed after which an inlet assembly can be installed and coupled to the core structure using fasteners. An input/output (I/O) assembly that has been independently assembled and pre-tested can be installed after which a power supply unit (PSU) flex can be connected to the MLB followed by connecting the DC PSU power using a bus bar system. An exhaust assembly can be installed followed by connecting a RF antenna flex to an I/O assembly. Final assembly can include locking the assembly from top down 
       FIG. 6A  shows a multi-computing system arrangement  600  in accordance with the described embodiments. Arrangement  600  can include compact computing systems  602  in a stacked arrangement in rack  604 . In this configuration, each of the compact computing systems can be interconnected with each other to form a network, for example, compact computing systems  602  can be oriented in any number of directions. As shown in  FIG. 6A , compact computing systems  602  are arranged horizontally such that air intake/exhaust do not interfere with each other. In this depiction, cooling air can be pulled in on one side of rack arrangement  604  and exhausted on another side. In this way exhaust air from one compact computing system is not likely to be re-circulated into an intake of a nearby computing system. Compact computing systems  602  can be arranged in such a manner can also be in direct communication via data connectors  606 . Data connectors  606  can be embodied by Ethernet cables, Thunderbolt® cables, or any number of other high speed data transfer protocol. In some embodiments the depicted compact computing systems can be in wireless communication.  FIG. 6B  shows a configuration in which a number of compact computing system are slaved to master compact computing system, thereby allowing the master compact computing system  610  to allocate resources of the various other compact computing systems.  FIG. 6C  shows various other arrangements compatible with the described compact computing systems. For example, “honey comb” rack  620  can be used to arrange compact computing systems  602  in a highly efficient close packed arrangement illustrated in various cross sections in  FIG. 6D . A perspective view and cross sectional view of one embodiment are depicted showing a hexagonal arrangement of compact computing systems. In another arrangement the compact computing systems can be arranged in a linear arrangement. 
       FIG. 7  is a flowchart detailing a process in accordance with the described embodiments. Process  700  is carried out by detecting the movement of the desktop computing system by a sensor at  702  and at  704  providing a movement detection signal by the sensor to a processor in accordance with the movement and altering an operation of the desktop computing system in accordance with the movement at  706 . 
       FIG. 8  is a block diagram of a computing system  800  suitable for use with the described embodiments. The computing system  800  illustrates circuitry of a representative computing system. The computing system  800  includes input device  801  coupled to a processor  802  that pertains to a microprocessor or controller for controlling the overall operation of the computing system  800 . The computing system  800  stores data (such as media data) in a file system  804  and a cache  806 . The file system  804  typically provides high capacity storage capability for the computing system  800 . The cache  806  is, for example, Random-Access Memory (RAM) provided by semiconductor memory. The computing system  800  can also include a RAM  808  and a Read-Only Memory (ROM)  810 . The ROM  810  can store programs, utilities or processes to be executed in a non-volatile manner. 
     The computing system  800  also includes a network/bus interface  814  that couples to a data link  812 . The data link  812  allows the computing system  800  to couple to a host computer or to accessory devices. The data link  812  can be provided over a wired connection or a wireless connection. In the case of a wireless connection, the network/bus interface  814  can include a wireless transceiver. The media items (media data) can pertain to one or more different types of media content. In one embodiment, the media items are audio tracks (e.g., songs, audio books, and podcasts). In another embodiment, the media items are images (e.g., photos). However, in other embodiments, the media items can be any combination of audio, graphical or visual content. Sensor  816  can take the form of circuitry for detecting any number of stimuli. For example, sensor  816  can include a Hall Effect sensor responsive to external magnetic field, an audio sensor, a light sensor such as a photometer, and so on. 
     A desktop computing system includes a housing having a variable wall thickness and having a longitudinal axis that defines and encloses an internal volume that is symmetric about the longitudinal axis and a computational component positioned within the internal volume. 
     A computing system includes a housing having a longitudinal axis and that encloses and defines an internal volume that is symmetric about the longitudinal axis where the housing is formed of electrically conductive material, a computational component, and a base that supports the computational component and forms a conductive shell with the housing that electromagnetically isolates the computational component by blocking passage of electromagnetic (EM) energy. 
     An enclosure for a computer system includes a housing having a longitudinal axis that encloses an internal volume that is symmetric about the longitudinal axis and a cross section having a center point on the longitudinal axis. 
     An enclosure for a compact computing system having a computational component includes a cylindrical body that encloses a cylindrical volume having a longitudinal axis and comprises an electrically conductive material and a cylindrical shaped base attached to the cylindrical body in a closed configuration that electrically couples the base and the cylindrical body forming an electromagnetic (EM) shield that electromagnetically isolates the cylindrical volume. 
     An enclosure for a desktop computing system having a computational component, includes a body that encloses an internal volume formed of an electrically conductive material, a base unit, and a sensible element that is detectable by a sensing mechanism coupled to the computational component, wherein the detectability of the sensible element by the sensing mechanism corresponds to a state of the enclosure. 
     A desktop computing system includes a housing having a longitudinal axis that encloses an internal volume that is symmetric about the longitudinal axis, a heat sink that encloses at least a central thermal zone that is substantially parallel to the longitudinal axis and having a cross section having a shape of a polygon, and a computing engine comprising a computational component disposed within the internal volume and carried by and in thermal contact with the heat sink. 
     An enclosure for a desktop computer system includes a cylindrical body having a longitudinal axis formed of electrically conductive material that encloses and defines a cylindrical volume having a circular cross section comprising a center point positioned on the longitudinal axis. 
     An enclosure for a compact computing system having a computational component includes a body that encloses and defines a cylindrical volume and comprises an electrically conductive material and a base having a size and shape in accordance with and attached to the cylindrical body in a closed configuration that electrically couples the base and the cylindrical body forming an electromagnetic (EM) shield that electromagnetically isolates the cylindrical volume. 
     A cylindrical desktop computing system having a computational component includes a cylindrical housing having a longitudinal axis that encloses and defines a cylindrical volume that is symmetric about the longitudinal axis. 
     A cylindrical desktop computing system includes a cylindrical housing that defines a cylindrical volume having a longitudinal axis and a computational component positioned within the cylindrical volume. The cylindrical desktop computing system includes a housing wall having a varying housing wall thickness where the cylindrical housing wall thickness comprises a first thickness at a first end of the cylindrical housing such that the cylindrical housing wall thickness comprises a second thickness at a second end of the cylindrical housing where the first thickness value is less than the second thickness value. In an embodiment, the cylindrical housing comprising a first opening at the first end and a second opening at the second end opposite the first end and the first opening is circular having a first diameter and second opening is circular having a second diameter where second diameter is greater than the first diameter. In an embodiment, the computational component transfers heat to air from the first opening that is moving through the cylindrical volume and the air moves through the cylindrical volume generally parallel to the longitudinal axis and the heated air passes out of the cylindrical volume through the second opening and some of the thermal energy of the heated air is transferred to the cylindrical housing at the second opening. 
     In an embodiment, the change in cylindrical housing wall thickness promotes circumferential and axial diffusion of the thermal energy. In an embodiment, the circumferential and axial diffusion of the thermal energy inhibits formation of thermal hot spots in the housing the heated air has a reduced acoustic signature at the second opening. In one embodiment, the computational component has a shape having a major centerline corresponding to a major dimension and a minor centerline corresponding to a minor dimension. In one embodiment, the major dimension corresponding to a major length and the minor dimension corresponds to a minor length. In one embodiment, the major dimension is a length (L) and the minor dimension is a width. In one embodiment, the major dimension is generally parallel to the longitudinal axis. In one embodiment, the minor dimension is generally parallel to the longitudinal axis. In an embodiment, a heat sink having planar faces at least one of which is generally parallel to the longitudinal axis, the planar faces defining a central region where the central region has a triangular cross section. In an embodiment, an inside surface of the cylindrical housing and an exterior surface of at least one of the planar faces form a peripheral region spaced apart from the triangular central region. In an embodiment, the computational component is mounted to one of the planar faces. In an embodiment, the cylindrical housing is formed of aluminum. 
     A computing system includes a cylindrical housing formed of electrically conductive material that defines a cylindrical volume, a computational component within the cylindrical volume, and a cylindrical base that supports the computational component and forms a conductive shell in combination with the cylindrical housing that electromagnetically isolates the computational component by blocking passage of electromagnetic (EM) energy. 
     In an embodiment, the cylindrical base comprises a pedestal configured to support the computing system in a vertical orientation and a vent system that allows an intake air flow into the cylindrical volume and inhibits the passage of EM energy. In an embodiment, the vent system includes vents that can be spaced apart along a circumference of the cylindrical base. In an embodiment, at least some of the vents are spaced apart in a manner that inhibits the passage of EM energy. In an embodiment, at least one of the vents is angled with respect to the cylindrical base in a manner that inhibits a reduction of the intake airflow regardless of a spatial orientation of the computing system. In an embodiment, the housing comprises a housing wall formed of thermally conductive material having a tuned thickness that inhibits formation of thermal hotspots in the housing by promoting circumferential and axial conduction of thermal energy. In an embodiment, the computing system further includes an electrical connector configured to electrically connect the computational component to an external circuit the external circuit is part of a second computing system. In an embodiment, the second computing system has a spatial orientation different than that of the computing system. In an embodiment, the second computing system is not vertically supported by the pedestal. In an embodiment, the second computing system is rack mounted. 
     An enclosure for a cylindrical computer system includes a cylindrical housing that defines a cylindrical volume having a longitudinal axis and a circular cross section having a center point corresponding to a position on the longitudinal axis and a wall having a wall thickness that varies in accordance with the position of the center point on the longitudinal axis. 
     In an embodiment, the circular cross section further comprising a radius having a radial length, the radius being perpendicular to the longitudinal axis and the radial length varies in accordance with the position of the center point of the circular cross section on longitudinal axis. In an embodiment, the system includes an inner radius having a first radial length that defines in part an interior surface of the cylindrical housing. In an embodiment, the circular cross section includes an outer radius having a second radial length greater than the first radial length that defines in part an exterior surface of the cylindrical housing. 
     In an embodiment, the wall thickness corresponds to a difference between the outer radial length and the inner radial length. In an embodiment, the inner radius length is a constant value. In an embodiment, wherein the cylindrical housing is electrically and thermally conductive. In an embodiment, the varying wall thickness promotes axial and circumferential heat transfer within the cylindrical housing. In an embodiment, the axial and circumferential heat transfer inhibits formation of thermal hot spots in the cylindrical housing. In an embodiment, the cylindrical housing comprises a first opening at a first end of the cylindrical housing having a first diameter and a second opening at a top end opposite the first end having a second diameter. In an embodiment, the second diameter is less than the first diameter. In an embodiment, the cylindrical housing wall thickness varies from a first thickness value near the first opening and a top thickness value near the second opening. In an embodiment, the first thickness value is less than the top thickness value. In an embodiment, the system includes a base unit at the first end of the cylindrical housing comprising a support element that provides support for the computing system. In an embodiment, in a closed configuration, the base unit and the cylindrical housing cooperate to electromagnetically isolate the cylindrical volume. In an embodiment, the cooperation comprises forming a Faraday cage by electrically coupling the cylindrical housing and the base unit. In an embodiment, the cylindrical housing is formed of aluminum. 
     An enclosure for a compact computing system having a computational component is described. In one embodiment, the enclosure has a cylindrical body that defines and encloses a cylindrical volume and includes a wall formed of an electrically conductive material and a cylindrical shaped base attached to the cylindrical body. In a closed configuration the base and the cylindrical body are coupled together forming an electromagnetic (EM) shield that electromagnetically isolates the cylindrical volume. 
     In an embodiment, the cylindrical body has a circular cross section and includes a first circular opening having a first diameter at a first end and a second circular opening having a second diameter at a second end. In an embodiment, the cylindrical body further includes an electrically conductive seal at the first end. In an embodiment, in the closed configuration the electrically conductive seal creates an electrically conducting path between the cylindrical body and the base. In an embodiment, the base includes a pedestal configured to support the enclosure and an opening having a size and shape configured to allow passage of air and inhibit passage of EM energy where the pedestal supports the enclosure in a vertical orientation on a horizontal surface. In an embodiment, the opening includes at least a vent positioned about a circumference of the cylindrically shaped base in a manner that provides for the passage of the air and that inhibits the passage of the EM energy. 
     In an embodiment, a sensing element within the cylindrical volume configured to detect a state of the enclosure, the sensing element being coupled to the computational component where the state of the enclosure comprises a configuration of the enclosure with respect to the base and the sensing element sends a configuration signal to the computational component. In an embodiment, the configuration signal causes the computational component to operate in a corresponding operating state. In an embodiment, the operating state is a fully operational state only when the configuration signal corresponds to the closed configuration in which the base and cylindrical body are attached to each other. In an embodiment, the body further includes a magnetic element that provides a magnetic field detectable by the sensing element. 
     In an embodiment, the closed configuration corresponds to the sensing element detecting the magnetic field having a pre-determined magnetic field strength. In an embodiment, the state of the enclosure corresponds to motion of the enclosure with respect to a reference frame detectable by the sensing element. In an embodiment, the sensing element sends a motion detection signal to the computational component when the motion of the enclosure with respect to the reference frame is detected. In an embodiment, the computational component responds to the motion detection signal by providing an indication of the detected motion. In an embodiment, the indication is an optical indication. 
     A method of indicating movement of a desktop computing system by detecting the movement of the desktop computing system by a sensor, providing a movement detection signal by the sensor to a processor in accordance with the movement and altering an operation of the desktop computing system in accordance with the movement. The movement includes at least one of a rotational movement and a translational movement. In one embodiment, altering the operation of the desktop computing system includes providing an indication of the movement. In one embodiment, the indication of the movement is a visual notification. In one embodiment, the visual notification comprises: illuminating an I/O port in accordance with an illumination pattern. In one embodiment, the method includes providing an illumination control signal by the processor in response to the movement detection signal to an I/O interface panel having a light emitting diode (LED. In one embodiment, the method includes light provided by the LED in response to the illumination control signal, receiving at least some of the light generated by the LED by a grouping light guide adjacent to the plurality of I/O ports that guides some of the received light through an opening of an opaque layer on an outer surface of the I/O interface panel, illuminating the I/O port using at least some of the guided light indicating the movement of the desktop computing system. In one embodiment, a first portion of the I/O interface panel is adjacent the grouping light guide and is at least partially transparent to the light. In one embodiment, a second portion of the I/O interface panel adjacent the first portion of the interface panel and adjacent to the at least one I/O port is opaque to the light. 
     A network system includes at least two interconnected computing systems having a cylindrical shape characterized as having a longitudinal axis and each having a thermal management system connected together in a manner that allows the thermal management system of each computing system to maintain a pre-determined thermal performance of each computing system within an operating limit during operation. In one embodiment, the longitudinal axes of the interconnected computing systems are perpendicular to each other. 
     In one embodiment, the longitudinal axes of the interconnected computing systems are aligned to each other. In one embodiment, the longitudinal axes of the interconnected computing systems are perpendicular to each other. In one embodiment, the longitudinal axes of the interconnected computing systems are aligned to each other. In one embodiment, the longitudinal axes of the interconnected computing systems are aligned to each other and generally parallel to a horizontal support surface. In one embodiment, the longitudinal axes of the interconnected computing systems are aligned to each other and generally parallel to a horizontal support surface. 
     An enclosure for a desktop computing system having a computational component includes a cylindrical body that encloses a cylindrical volume and comprises a wall formed of an electrically conductive material, a base unit; and a sensible element that is detectable by a sensing mechanism coupled to the computational component, wherein the detectability of the sensible element by the sensing mechanism corresponds to a state of the enclosure. 
     A desktop computing system includes a cylindrical housing that encloses a cylindrical volume having a longitudinal axis, a heat sink that encloses at least a central thermal zone that is substantially parallel to the longitudinal axis and having a triangular cross section, and a computing engine comprising a computational component disposed within the cylindrical volume and carried by and in thermal contact with the heat sink. 
     An enclosure for a desktop computer system includes a cylindrical body formed of electrically conductive material that encloses and defines a cylindrical volume having a longitudinal axis and a circular cross section comprising a center point positioned on the longitudinal axis. 
     An enclosure for a desktop computing system having a computational component, includes a body that encloses an internal volume formed of an electrically conductive material, a base unit, and a sensible element that is detectable by a sensing mechanism coupled to the computational component, wherein the detectability of the sensible element by the sensing mechanism corresponds to a state of the enclosure. 
     A desktop computing system includes a housing having a longitudinal axis that encloses an internal volume that is symmetric about the longitudinal axis, a heat sink that encloses at least a central thermal zone that is substantially parallel to the longitudinal axis, and a computing engine comprising a computational component disposed within the internal volume and carried by and in thermal contact with the heat sink. 
     An enclosure for a desktop computer system includes a cylindrical body having a longitudinal axis formed of electrically conductive material that encloses and defines a cylindrical volume having a circular cross section comprising a center point positioned on the longitudinal axis. 
     An enclosure for a compact computing system having a computational component includes a body that encloses and defines a cylindrical volume and comprises an electrically conductive material and a base having a size and shape in accordance with and attached to the cylindrical body in a closed configuration that electrically couples the base and the cylindrical body forming an electromagnetic (EM) shield that electromagnetically isolates the cylindrical volume. 
     A desktop computing system having a computational component includes a cylindrical housing having a longitudinal axis that encloses and defines a cylindrical volume that is symmetric about the longitudinal axis. 
     The various aspects, embodiments, implementations or features of the described embodiments can be used separately or in any combination. Various aspects of the described embodiments can be implemented by software, hardware or a combination of hardware and software. Aspects of the described embodiments can also be embodied as computer readable code on a computer readable medium. In some embodiments, the computer readable code can be used to manufacture and/or assembly for controlling manufacturing operations or as computer readable code on a computer readable medium for controlling a manufacturing line. The computer readable medium is any data storage device that can store data that can thereafter be read by a computer system. 
     The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that the specific details are not required in order to practice the invention. Thus, the foregoing descriptions of specific embodiments of the present invention are presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed. It will be apparent to one of ordinary skill in the art that many modifications and variations are possible in view of the above teachings. 
     The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the following claims and their equivalents. 
     While the embodiments have been described in terms of several particular embodiments, there are alterations, permutations, and equivalents, which fall within the scope of these general concepts. It should also be noted that there are many alternative ways of implementing the methods and apparatuses of the present embodiments. It is therefore intended that the following appended claims be interpreted as including all such alterations, permutations, and equivalents as fall within the true spirit and scope of the described embodiments.

Metadata:
Filing Date: 20160811
Publication Date: 20200121
Grant Date: 20200121
Priority Date: 20130607
Inventors: WHANG, Eugene A.
STRINGER, CHRISTOPHER J.
DEGNER, BRETT W.
NARAJOWSKI, DAVID H.
KESSLER, PATRICK
PRATHER, ERIC R.
KALINOWSKI, Caitlin Elizabeth
STAGNARO, Adam T.
MCBROOM, DANIEL L.
CASEBOLT, MATTHEW P.
MCBROOM, MICHAEL D.
Assignee: APPLE INC
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Family ID: 52004898