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A computer network is a group of interconnected computers that can accomplish many important tasks To define computer networking you should define networks A network is composed of two or people or objects using a common language and they have something to share In computer networking the two or more objects are the computer or terminal This can consist have an IBM 3270 terminal and accompanying mainframe to a stand-alone computer The computer is usually an IBM PC personal computer or clone licensed copy of a PC usually cheaply made The common language or protocol is necessary for the communicators to be able to understand each other We take for granted simple things like who talks first how long they talk and how to end a conversation A protocol addresses these and more The common protocol is Transmission Control Protocol TCPIP TCPIP is the protocol of the Internet Internet is actually the short form of the word Internet work Internet work means a network of networks At one time all of the different networks used different protocols A user could talk to others on their network but not to someone on a different network The protocol TCPIP solves this problem It is what allows a person on one network to communicate with a person on a different network When I mentioned something to share in the network definition it can be anything an idea document or greeting Networking allows use of applications on other computers electronic mail email and real time discussions in chat rooms The types of networks are classified as distributive or centralized In a centralized network processing occurs at one place and requests are made of the processing from terminals A mainframe computer with attached terminals is a great example of centralized network The terminals communicate with the mainframe to accomplish tasks A distributive network spreads processing power to the individual computers Networked PCs are a great
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