Introduction to Computer Networks and Data Communications Learning Objectives • Define the basic terminology of computer networks • Recognize the individual components of the big picture of computer networks • Outline the basic network configurations • Cite the reasons for using a network model and how those reasons apply to current network systems 2 1: Introduction 2 Introduction Chapter goal: understand TCP/IP and networking terminology more depth, detail laterin course approach: Top-down descriptive use Internet as example Text Books: “Computer Networking”, J. Kurose – K. Ross, Addison Wesley “TCP/IP illustrated volume I”, The protocols, W. Richard Stevens, If one computer can forcibly start, stop and control another one, the computers are not autonomous. To exchange the data and ideas, you need an effective … Functionalities of … Connecting to Networks and the Internet The Networking Academy course that you are (likely) taking when using this book may be your first formal introduction to the world of computer networking. An Introduction to Computer Networksis a free and open general-purpose computer-networking textbook, complete with diagrams and exercises.It covers the LAN, internetworking and transport layers, focusing primarily on TCP/IP. Computer networks can be classified based on different attributes such as physical size, mode of connection, types of devices, etc. Two computers are said to be interconnected if they are able to exchange the information. Node Devices - Any computer or peripheral that is connected to the network. Computer Networks K Munivara Prasad UNIT- I Introduction An interconnected collection of autonomous computers is called a computer network. To ease network engineering, the whole networking Introduction to Computer Computer A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use1. Introduction to Computer Networks 1.1 Data Communication:When we communicate, we are sharing information. This sharing can be local or remote. Introduction to Computer Network: Uses of Computer Networks: Business Applications, Home Applications, Mobile Users, Social Issues, Network Hardware: LANs, MANs, WANs.. Network Software: Protocol Hierarchies, Design Issues for the Layers, Connection-Oriented and Connectionless Services, Service Primitives, The Relationship of Services to Protocols. BaseTech / Networking Concepts / team / 223089-4 / Blind Folio 3 • Figure 1.1 A computer network can be as simple as two or more computers communicating. • IP is a standard that defines the manner in which the network layers of two hosts interact. Types of Computer Network. Local Area Network (LAN) Metropolitan Area Network (MAN) IP addresses are 32 bit long, hierarchical addressing scheme. Between individuals, local communication usually occurs face to face, while remote communication takes place over distance. • The more people in your network, the better your chances of finding that perfect job. 3 Network IP Address Logical Address= 192.168.6.17 Network Layer (Cont.) Peer-to-Peer Network - A network in which resources and files are shared without a centralized management source. Particular attention is paid to congestion; other special topics include queuing, real-time traffic, network management, security and the ns simulator. UNIT-I. computer networking, introduces many terms, and provides a solid foundation before you get into more detailed subjects in later chapters. A For the remainder of this text, the term networkwill be used to mean computer network. 1 – Introduction to Computer Networks & Internet Firoz A. Sherasiya, CE Department | 2140709 – Computer Networks (CN) 3 Nowadays, most of the works of businesses are done over the computers. You will often hear the following. For an easy introduction, let’s look at its classification in terms of physical size. COMPUTER COMMUNICATION NETWORKS Department of ECE, ACE Page 1 COMPUTER COMMUNICATION NETWORKS UNIT 1 : INTRODUCTION TO NETWORKS Networking engineering is a complicated task, which involves software, firmware, chip level engineering, hardware, and electric pulses. Such as physical size, mode of connection, types of devices, etc, local usually... Attention is paid to congestion ; other special topics include queuing, real-time traffic network... 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