The Macintosh Operating System (Mac OS) is the name of the default operating systemfor Macintosh computers produced by Apple. The first version was released in 1984. Even before version 7.6, was simply called System (eg, System 4, System 7), version 7.6onwards came to be called Mac OS. The current version is called Mac OS X.It was the first graphics system widely used in computers use icons to represent items from your computer, such as programs, folders and documents. He also pioneered in spreading the concept of Desktop, with a desktop with icons for documents, folders and atrash can, in analogy to the office environment.Start by renaming the folders were created is an "Empty Folder" that was always at the root of the disk. From the System 2.0 system has been modified to include the command "New Folder" in Finder's File menu.The release of Mac OS X was a milestone for the operating system. In its tenth version, the system was refurbished as a whole, including the core that has to be based on BSD Unix. Popularly is the brain of the computer.technically it performs calculations and makes desisoes see that it is much like a "human brain" it works only in machine language, so "go" is not recognized by the processor than000111000 but it controls the hardware of the computer processes data processors have evolved more rapidly today they find difficulties to move from 3.0 GHz there was no need ofdivision into two or more processing cores to streamline operations This blog will provide tips on computers, laptops, playstations and netebooks event of anydoubt perguente that'll help. thank you An operating system is a program or set of programs whose function is to manage system resources (define which program receives attention from the processor, memory management, create a file system, etc..), And provides an interface between the computer and the user. It is the first program that runs on the machine when it is connected (through a process called bootstrapping), and from then on, it stops working until the computer is turned off. The operating system rotates with the execution of other programs, like you'rewatching, controlling and orchestrating the entire computational process.According to some authors (Silberschatz et al, 2005; Stallings, 2004; Tanenbaum, 1999), there are two distinct ways of conceptualizing an operating system:from the perspective of the user or programmer (top-down view) is an abstraction of thehardware, making the role of intermediary between the application (program) and the physical components of computer (hardware) ora bottom-up view, from the bottom up: it is a resource manager, ie, controls which applications (processes) can be performed, when, what resources (memory, disk, peripherals) can be used. Video card, also called the video adapter or graphics accelerator, is a component of a computer that sends this to the monitor, so that images can be presented to the user.Usually has its own memory, with capacity measured in octets.Leading manufacturers:nVidiaS3 GraphicsMatroxSiS/XGI3DlabsPowerVR ATI Technologies IPHONE- The iPhone is a smartphone developed by Apple Inc. with built-in iPod, digital camera, internet, text messages (SMS), visual voicemail, wi-fi location, and currently supports