Transcription of Computer Network - Vandemataram College
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Computer Network - Vandemataram College
Unit 1. Introduction to data communications and networking 1 NETWORKING FUNDAMENTALS Unit Structure Objectives Introduction Data & Information Data Communication Characteristics of Data Communication Components of Data Communication Data Representation Data Flow Simplex Half Duplex Full Duplex Computer Network Categories of a Network Protocol Elements of a Protocol Standards In Networking Concept of Standard Standard Organizations in field of Networking OBJECTIVES: Introduce the readers to data communication and its fundamentals Define networks Define protocols Standards in networking 2 INTRODUCTION This chapter provides an introduction to Computer networks and covers fundamental topics like data, information to the definition of communication and Computer networks. The main objective of data communication and networking is to enable seamless exchange of data between any two points in the world.
A. Local Area Networks (LAN) is usually limited to a few kilometers of area. It may be privately owned and could be a network inside an office on one of the floor of a building or a LAN could be a network consisting of the computers in a entire building. B. Wide Area Network (WAN) is made of all the networks in a (geographically) large area. The
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