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 Number of users:-Having a large number of concurrent users can slow response time in a network not designed to coordinate heavy traffic loads. The performance of a network depending on a number of factors including the number of users, the type of transmission medium, the capability of the connected hardware and the efficiency of the software.

Response time:-Response time is the elapsed time between an inquiry and a response.

4 Transit time:-It is amount of time required for a message to travel from one device to another. 1.PERFORMANCE:-Performance can be measured in many ways, including transit time and response time. The most important of these are performance, reliability and security. NETWORK CRITERIA:-To be considered effective and efficient a network must meet a number of criteria. 3 Network The links connecting the devices are often called communication channels. A node can be a computer, printer or any other device capable of sending and receiving data generated by other nodes on the network. What is a Network? A network is a set of devices connected by media links. Sharing software Users connected to a network may run application program on remote computers.

The capability of providing access to data and information on shared storage devices is an important feature of many networks. Sharing files, data, and information: In a network environment, authorized user may access data and 2     information stored on other computers on the network.

Sharing hardware: In a networked environment, each computer on a network may access and use hardware resources on the network, such as printing a document on a shared network printer. Development of the network began in 1969, based on designs developed during the 1960s Purpose Computer networks can be used for several purposes:    Facilitating communications: Using a network, people can communicate efficiently and easily via email, instant messaging, chat rooms, telephone, video telephone calls, and video conferencing. It was the first computer network in the world. In the 1960s, the Advanced Research Projects Agency (ARPA) started funding the design of the Advanced Research Projects Agency Network ARPANET for the United States Department of Defense. MINOR PROJECT ON COMPUTER NETWORK CONTENTS 1.