Introduction to Computer Network
Introduction to Computer Network A computer network is a group of devices connected with each other through a transmission medium such as wires, cables etc. These devices can be computers, printers, scanners, Fax machines etc. The purpose of having computer network is to send and receive data stored in other devices over the network. These devices are often referred as nodes. There are five basic components of a computer network Message : It is the data or information which needs to be transferred from one device to another device over a computer network. Sender : Sender is the device that has the data and needs to send the data to other device connected to the network. Receiver : A receiver is the device which is expecting the data from other device on the network. Transmission media: In order to transfer data from one device to another device we need a transmission media such as wires, cables, radio waves etc. Protocol : A protocol is a set of rules that are agreed