When one end system has data to send to another end system, the sending end system segments the data and adds header bytes to each segment. End systems are connected together by a network of communication links and packets switches.ĭifferent links can transmit data at different rates, with the transmission rate of a link measured in bits/second. Today not only computers and workstation are being connected to the network, therefore the term computer network may sound a bit dated.Īll the devices connected to the Internet are called hosts or end systems.
The Internet is a computer networks that interconnects hundreds of millions of computing devices through the world.
Chapter 1: Computer Networks and the Internet 1.1 What is the Internet? 1.1.1 A nuts-and-bolts description
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