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| Group of Devices |
A network is a group of devices (called nodes) that are connected by communication links. A node can be a computer, printer or any other device, which is capable of sending and receiving network data.
A computer network is a digital telecommunications network that allows nodes to share resources. In the computer network, computing devices exchange data with each other using the connection (data link) between the nodes. A computer network is essentially a collection of interactive autonomous computers by a single technology. If they are able to exchange information, then two computers are interconnected.
1. Network Goals