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COMPUTER NETWORK SYSTEMS IN DOHA QATAR

Computer Network Systems Description: Computer Networks – Types and ObjectivesA computer network is defined as interconnected collection of autonomous computers. Computer are said to be interconnected, if they able to exchange information. Connection is physically established through cables, lasers, microwaves, fiber optics and communication satellite.What we mean by the word ‘autonomous’? Autonomous is any one computer in the network that cannot forcibly start, stop or control another computer in the network. In other words, the computer works independently. This is in sharp contrast to a computer with full control over many slaves. This is not a computer network.Now there is another term ‘distributed computing’ which is closely related with networks. A distributed computer system differ from a computer network in one as aspect that in a distributed system, the existence of multiple autonomous computers is not visible to the user. The user can type commands that are executed in a different machine selected by the operating system. It is the job of the operating system to select free processor, find and move all the required input files to that processor and send the result to the user.In a network, the user must logon to the network, locate files and submit jobs. The network management has to be handled personally by the user. In a distributed system, all jobs are done automatically by the system without the user’s knowledge. Hence the distributed system is a special case of network system, one whose operating s... View Full Blog Content...
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