Computer Networks Sanjeewa HMC B.Sc(Hons(Ruh)) Reading MIT(Col)

Slides:

Advertisements

Similar presentations

Chapter 3: Introduction to Data Communications and Networking

Advertisements

Vocabulary words By: Toyre Jones. Electronic mail which allows individuals with an account to send messages to another person with an account.

INTRODUCTION TO COMPUTER NETWORKS Zeeshan Abbas. Introduction to Computer Networks INTRODUCTION TO COMPUTER NETWORKS.

Web Page Design Chapter 1 Introducing Networks and the Internet.

Copyright © 2012 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin APPENDIX B NETWORKS AND TELECOMMUNI CATIONS APPENDIX B NETWORKS.

Copyright © 2015 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education.

Chapter VI Data Communication: Delivering Information Anywhere and Anytime By: AP CHEN P. JOVER BSIT - III.

Maninder Kaur COMPUTER NETWORKS Maninder Kaur 14/10/2010

2 An Overview of Telecommunications and Networks Telecommunications: the _________ transmission of signals for communications (home net) (home net)

Communication Links Communication Link = Physical connection or Physical Medium Types: Wire Pair or Twisted Pair Coaxial Cable Fiber Optics Bandwidth,

The Computer Network.

Eleventh Edition 1 Introduction to Information Systems Essentials for the Internetworked E-Business Enterprise Irwin/McGraw-Hill Copyright © 2002, The.

Microcomputer Networking II St. Cloud State University MCS 426, Fall 1999 Instructor: Adomas Svirskas The ISO/OSI Reference Model The Model Functionality.

INTRODUCTION TO COMPUTER NETWORKS INTRODUCTION Lecture # 1 (

INTRODUCTION TO COMPUTER NETWORKS Navpreet Singh Computer Centre Indian Institute of Technology Kanpur Kanpur INDIA (Ph : ,

Information & Communication Technology

Chapter 3: Information and Communications Technologies: The Enterprise Architecture Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall.

Chapter 5 Networks Communicating and Sharing Resources

Networks and Telecommunications Strategies Dr. Robert Chi Chair and Professor, IS department Chief editor, Journal of Electronic Commerce Research.

Networks and Telecommunications

CN. Computer NEtwork ► A computer network, often simply referred to as a network, is a collection of computers.

What Is A Network A network is a group of computers interconnected with communication lines which allows users to share information and resources.

ITED 328 Lecture 4 12 Feb 2004 Loosely covering Chapter 5 Internet and LAN Technology.

McGraw-Hill/Irwin ©2008 The McGraw-Hill Companies, All Rights Reserved Business Plug-in 5 NETWORKS and TELECOMMUNICATIONS.

Data Communication. 2 Data Communications Data communication system components: Message Message Information (data) to be communicated. Sender Sender Device.

Networks and Networking Chapter 4 Copyright Prentice-Hall, Inc

CHAPTER 2 COMMUNICATION, NETWORKS, AND THE WWW. WHAT IS COMMUNICATIONS? A process in which two or more computers or devices transfer data, instructions,

Chapter 7 Networking: Computer Connections. Networks n Network - a computer system that uses communications equipment to connect two or more computers.

Computer Networks: Hands On Experience

1.1 What is the Internet What is the Internet? The Internet is a shared media (coaxial cable, copper wire, fiber optics, and radio spectrum) communication.

By. Shafiq Ahmed Chachar Internet Applications Internet Relay Chat Telnet Search Engines E-Commerce File Transfer Protocol (FTP) Popular Uses of.

CPS Today’s topics Computer Applications Computer Communications Upcoming Computer Security ( Great Ideas, Chapter 11) Reading Great Ideas, Chapter.

Internet Addresses. Universal Identifiers Universal Communication Service - Communication system which allows any host to communicate with any other host.

Networking By Nachiket Agrawal 10DD Contents Network Stand Alone LAN Advantages and Disadvantages of LAN Advantages and Disadvantages of LAN Cabled LAN.

Computer network is a collection of computing devices that are connected in various ways in order to communicate and share resources Usually, the connections.

University of Palestine Faculty of Applied Engineering and Urban Planning Software Engineering Department INTRODUCTION TO COMPUTER NETWORKS Dr. Abdelhamid.

Chapter 1 Communication Networks and Services Network Architecture and Services.

Chapter 6 Data Communications. Network Collection of computers Communicate with one another over transmission line Major types of network topologies What.

INTRANETS MR ROSS UNIT 3 IT APPLICATIONS. DEFINITION An intranet is an internal, secured environment that has a similar look and feel to the Internet,

BASIC NETWORK PROTOCOLS AND THEIR FUNCTIONS Created by: Ghadeer H. Abosaeed June 23,2012.

Networks Am I hooked up?. Networks definition sizes of networks types advantages and disadvantages how data is sent transmission media business uses.

Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin APPENDIX B NETWORKS AND TELECOMMUNICATIONS APPENDIX B NETWORKS.

Chapter 13Oracle9i DBA II: Backup/Recovery and Network Administration 1 Chapter 13 Network Administration and Server-side Configuration.

NETWORKING & SYSTEM UPDATES

Welcome to Early Bird Class

What Is A Network A network is a group of computers interconnected with communication lines which allows users to share information and resources.

1 Chapter Overview Modems The Internet and Web Browsers.

Dr. John P. Abraham Introduction to Computer Networks INTRODUCTION TO COMPUTER NETWORKS.

LO2 Understand the key components used in networking.

Management Information Systems - Introduction. The telecommunication system Telecommunication System – consists of hardware and software that transmits.

COMPUTER NETWORKS Hwajung Lee. What is Computer Networks? A collection of autonomous computers interconnected by a single or multiple technologies Interconnected.

INTRODUCTION TO COMPUTER NETWORKS BY: SAIKUMAR III MSCS, Nalanda College.

Networking and firewall

Introduction to Technology Infrastructure

Networks Keywords Network Hardware

Introduction to Telecommunications

Instructor Materials Chapter 1 Ever Wonder How It Works?

Professional Web Designing For Absolute Beginners

Introduction to Technology Infrastructure

السلام عليكم.

Computer Technology Notes #4

Network Media, models and number systems

NETWORK BASICS Network - a communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards,

Data Communication.

INTRODUCTION TO COMPUTER NETWORKS

Presentation transcript:

Computer Networks Sanjeewa HMC B.Sc(Hons(Ruh)) Reading MIT(Col)

Objectives Brief introduction to computer networks & understanding sub netting to utilize ip address block in efficient manner.

Out lines What is a computer network? Components of a network. Advantages of a computer network. IP Sub netting IP address Subnet mask Purposes of sub netting Example for sub netting References

What is a computer network? A computer network is a set of interconnected network devices that allows them to share data, information, software, hardware devices and processing power.

Components of a network Server – to provide services Ex: file servers, web servers, data base servers Client - to get services from those servers. Ex: web client Protocols - A protocol is an agreement (rules) between the communicating parties on how communication is proceed. Ex: TCP/IP suite Transmission media – to transfer data between two network devices.

Transmission Media Guided Media Unguided Media

Guided media Physically connect two devices using wired connection. Ex: Twisted Pair (UTP,STP) Coaxial cable Optical fiber

Unguided Media Physically not connected using wired connection. use wireless technology to communicate with each other. Ex: wi-fi Infra red

Advantages of computer netwoks Provides a way to share data, programs, computing power and information. Online credit card checking, e-commerce and Electronic fund transfer are possible. Easily administered. Provides an efficient means of communication such as , voice mail, and video conferencing. Provides data security.

IP sub netting IP address Is a unique address (number) to identify each network devices. Is 32 bit binary number with 4 octal Ex: There is two parts in an ip address Network part Host part

IP sub netting cont……. IP Classes Class A – Class B Class C

IP sub netting cont……. Sub net mask We can get subnet mark for a ip number by each network bit value set to 1. It helps to identify whether the network is sub netted or not. Ex: subnet mask for a class C ip is Purposes of sub netting. Eliminate ip wast Fine tune network by utilizing ip in efficient manner.

IP sub netting cont……. Ex: You have an ip ranage /24. there is two labs to network with 50 and 25 terminals.

References. Tanebaum, Andrew S.,2003,Computer networks Pearson Education ; Delhi - xx,891 p. : 4th ed. (modified on 19/04/2010) Meijer,Anton,1982,Computer network architectures -Computer Science Press ; Maryland - xi,396 p. (modified on 19/04/2010)

Thank you!!!!!!!!!!!!!