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COMPUTER NETWORKS Lecture Notes

COMPUTER NETWORKS . Lecture Notes DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING. SHRI VISHNU ENGINEERING COLLEGE FOR WOMEN. (Approved by AICTE, Accredited by NBA, Affiliated to JNTU Kakinada). BHIMAVARAM 534 202. 0. UNIT -I. Introduction to COMPUTER NETWORKS data Communication:When we communicate, we are sharing information. This sharing can be local or remote. Between individuals, local communication usually occurs face to face, while remote communication takes place over distance. Components: A data communications system has five components. 1. Message. The message is the information ( data ) to be communicated.

1.2 NETWORKS A network is a set of devices (often referred to as nodes) connected by communication links. A node can be a computer, printer, or any other device capable of sending and/or receiving data generated by other nodes on the network. 1.2.1 Distributed Processing

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SHRI VISHNU ENGINEERING COLLEGE FOR …

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