Define network

Define Network? Networks are used for an incredible array of different purposes. In fact, the definitions above are so simple for the specific reason that networks can be used so broadly, and can allow such a wide variety of tasks to be accomplished. While most people learning about networking focus on the interconnection of PCs and other “true” computers, you use various types of networks every day. Each time you pick up a phone, use a credit card at a store, get cash from an ATM machine, or even plug in an electrical appliance.

This interconnection of small devices represents, in a way, a return to the “good old days” of mainframe computers. Before computers were small and personal, they were large and centralized machines that were shared by many users operating remote terminals. While having all of the computer power in one place had many disadvantages, one benefit was that all users were connected because they shared the central computer.

Networking attempts to move computing into the middle ground, providing PC users with the best of both worlds: the independence and flexibility of personal computers, and the connectivity and resource sharing of mainframes