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Unit 1. Introduction to data communications and …

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

Computer Networks are used for data communications Definition: A computer network can be defined as a collection of nodes. A node can be any device capable of transmitting or receiving data. The communicating nodes have to be connected by communication links. A Compute network should ensure reliability of the data communication process, should c

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