### scheme:

Network
* Most networks have a single point of contact to the Internet
  - one central point of administration, that is, one administrative region
  - transfer data in two directions and are known as duplex communications links
* Most networks use a combination of cable and wireless media to link computers
  - electrical wires of some special kind toconvey signals and data betweencomputers
* NetWORK is an ongoing process of keeping a personal network in good repair
  - our term for the work of establishing and managing personal relationships
* Some networks also have domains that are based on their country of origin
  - are small, involving as little as two computers
  - become complex with the presence of many gateways or bridges
* Some networks implement a local bus topology
  - logical ring topology
  - only have a limited connection to the Internet
  - represent the geographical breakup of various manufacturing steps in a factory
  - use proxies and firewalls to control Internet access
* act together like a single network.
* allow businesses to save money by sharing resources
  - information to be shared and processed by multiple users at any one time
  - machines and people to work together more effectively
* allow people to communicate, and work cooperatively
  - share information and equipment
  - work from the comforts of their own home or even while traveling
  - the organization to communicate to another more quickly and conveniently
* allows companies to share information, applications, printers, and other equipment.
* also allow for the transfer of data from one system to another.
* are a high speed method of transferring data from one computer to another
  - unique attribute of the nervous system and to a lesser extent the endocrine system
  - useful formalism to represent, catalog, and analyze biological information
  - about sharing
  - abstract structures that model binary structures
  - also systems, such as the telecommunications network, or the Internet
  - among the most important infrastructure elements for information and communication
  - communication systems
  - complex things
  - complicated data structures
  - critical to the efficient practice of law
  - cyber associations generally build at a regional level
  - dinosaurs
  - dynamic entities
* are everywhere in our world
  - the world of business
  - exclusive groups connected through focusing on specific, explicit and shared interests
  - fundamental to supporting business goals
  - important in one's professional development, irrespective of the career phase
  - lines of communication that people use to get things done
  - nodes linked together.in order to do something, to achieve a purpose
  - of vital importance in the workplace
  - organizations
  - patterns of communication, they control the flow
  - prevalent in every part of society
* are the arteries for information exchange
  - links that connect needs with opportunities
* are the organizations of the future at work today
  - tomorrow at work today
  - underlying infrastructure for pervasive computing
  - to computers what the telephone system is to people
  - topologies that connects computers over a large area
  - ways for computers to communicate with each other
* attempt to predict word sequences one word at a time.
* behave more like biology than machines.
* caching applies server-like functionality to solve the network congestion problem.
* can also be parts of bigger networks
  - be as small as two computers or as large as hundreds
* can have different physical and logical topologies
  - tens, thousands, or even millions of nodes
  - range in magnitude, and type
  - take many different physical forms
* carry digital information, such as voice, video, data, and images
  - signaling information used to manage telephone calls
* carrying multimedia, voice, data, and video traffic define the modern network architecture.
* come in different sizes, and different kinds of networks utilize different protocols.
* computing architecture is another way of describing distributed computing.
* connect people as well as devices.
* consist of people who are connected by common interest.
* contain layers of units, with connections between the units.
* create informal lines of communication.
* ease the cost of communicating with the outside world also.
* emerge as people engage with others based on their values.
* enable computers to communicate with each other
  - share files and resources and exchange messages
* exhibit positive consumption and production externalities.
* explains how to install and maintain networks.
* form the infrastructure of the modern world.
* have shapes, and the shape a network takes has much to do with the way it functions.
* help businesses and individuals speedily share information.
* imply a transfer of information, a communication between parts.
* includes hierarchies.
* increase productivity, efficiency, and increases communication amongst users.
* is both a noun and a verb.
* link work to personal values, the most compelling source of motivation without coercion.
* make use of multiple sources of information.
* object A networked device, application, process or information resource.
* occur when computer systems are connected together.
* place for people to express how they feel about different issues.
* play an important role in efficiency and data sharing within a company.
* produce increasing quantities of data in the form of data streams.
* provide the pathways by which computers share information and coordinate their tasks.
* refers to how linear features are connected together, like roads or streams.
* routers direct traffic between different networks.
* serve as the nervous system for today's fast-paced business environment.
* spoofing is an ingenious way for an intruder to gain access.
* stretch across societies that have different values and traditions.
* tend to flatten out communication patterns.
* tie personal records together and people worry about the privacy of their data.
* turn computers into communication machines.
+ Computer network
  * Computers can be part of several different networks. Networks can also be parts of bigger networks. The 'local area network' in a small business is usually connected to the 'corporate network' of the larger company. Any connected machine at any level of the organization may be able to access the 'Internet', for example to demonstrate computers in the store, display its catalogue through a web server, or convert received orders into shipping instructions.