Local Area Network By Bhupendra Ratha, Lecturer

Slides:



Advertisements
Similar presentations
Introduction to Computer Administration. Computer Network - Basic Concepts Computer Networks Computer Networks Communication Model Communication Model.
Advertisements

Web Page Design Chapter 1 Introducing Networks and the Internet.
1.1 Chapter 1 Introduction Lecture # 1 – 2 Ali Mustafa.
Networking Basics lesson 17. This lesson includes the following sections: The Uses of a Network How Networks are Structured Network Topologies for LANs.
Telecommunications Chapter 5 Chapter 5 Telecommunications
Two Network Types Defined by DISTANCE LAN WAN. NETWORKS LAN LOCAL AREA NETWORK.
11 Networks The Great Information Exchange. 2 Networking Fundamentals Computer network: Two or more computers connected together Each is a Node Benefits.
NETWORKING NETWORKS TELECOMMUNICATIONS Two or more computers communicating Long distance communications.
Chapter Preview  In this chapter, we will study:  The basic components of a telecomm system  The technologies used in telecomm systems  Various ways.
Chapter 9 Communications and Network Tyler Clutts.
Intro to MIS – MGS351 Network Basics Extended Learning Module E.
Network Topologies.
Chapter 1: Overview Lecturer: Alias Mohd Telecommunications Department Faculty of Electrical Engineering UTM SET 4573: Data Communication and Switching.
NETWORK CHONGSEOK PARK 10DD MRS. VEENA MONY Content.
Laudon & Laudon: Canadian Edition
Chapter 5 Networks Communicating and Sharing Resources
Technology Guide 4 Telecommunication & Internet. Agenda Telecommunication terminology Communication media Network architecture concepts Enterprise networking.
Networks and Telecommunications
Chapter 9A Network Basics.
Data Communication & Computer Networks
Chapter 7 Local Area Networks: The Basics. Topics Definition of LAN Primary function, advantage and disadvantage Difference between Client/Server network.
Networks LANS,. FastPoll True Questions Answer A for True and B for False A wireless infrastructure network uses a centralized broadcasting device, such.
GRAP 3175 Computer Applications for Drafting Unit VI Data Communication.
CSCI-235 Micro-Computer in Science The Network. © Prentice-Hall, Inc Communications  Communication is the process of sending and receiving messages 
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.
Networking Basics lesson 4 essential concepts. This lesson includes the following sections: The Uses of a Network How Networks are Structured Network.
Unit 1—Computer Basics Lesson 7 Networks.
1 Chapter 7 Telecommunications. 2 What is Telecommunications? o Often used interchangeably, the terms Data Communications and Telecommunications both.
Module 2: Information Technology Infrastructure
NETWORKS.
Computer Network Basic Concepts. Topics Computer Networks Communication Model Transmission Modes Communication Types Classification Of Computer Networks.
1 California State University, Fullerton Chapter 6 Information System Networks and the Internet.
Unit 4 Networking Review.
Living Online Module Lesson 23 — Networks and Telecommunication
Lecture 4 Title: Network Components and Types By: Mr Hashem Alaidaros MIS 101.
Local Area Network Daniel Shin CS 147, Section 3 November 18, 2008.
1 CHAPTER 8 TELECOMMUNICATIONSANDNETWORKS. 2 TELECOMMUNICATIONS Telecommunications: Communication of all types of information, including digital data,
Introduction to Information Systems Lecture 06 Telecommunications and Networks Business Value of Networks Jaeki Song.
Telecommunications, the Internet, and Wireless Technology.
Introduction to Computing Lecture # 11 Introduction to Computing Lecture # 11.
What is a Network? Living Online Lesson 1 Mrs. Elzey.
5 SECTION A 1 Network Building Blocks  Network Classifications  LAN Standards  Network Devices  Clients, Servers, and Peers  Physical Topology  Network.
Chapter 4 Telecommunications and Networking The McGraw-Hill Companies, Inc All rights reserved. Irwin/McGraw-Hill.
Chapter2 Networking Fundamentals
Living Online Module Lesson 23 — Networks and Telecommunication Computer Literacy BASICS.
Slide 4-1 Chapter 4 Terms Data Communications and Networking Considerations Introduction to Information Systems Judith C. Simon.
3/20: Telecommunications & Networking What is telecommunications? The hardware: physical components of telecommunications, inc. channels Standards: agreements.
Lecture 1: Major Networking Concepts: a Review Dr. Najla Al-Nabhan.
Networking  Networking is of linking two or more computing devices together for the purpose of sharing data.
Higher Computing Networking. Networking – Local Area Networks.
Telecommunications and Networks Chapter 6 Principles and Learning Objectives Effective communication is essential to organizational success. –Define.
Local Area Networks: Monil Adhikari. Primary Function of a LAN File serving – large storage disk drive acts as a central storage repository Print serving.
Chapter 1 Introduction Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1.#
Data Communication and Networks Chapter 5. What’s a Network? a network consists of two or more computers that are connected together to share information.
Topic: Computer Communication, Networks and Internet Subject: Computer Communication and Networks Class: BS IT 4 th Semester By: Muhammad Hanif.
Computer Networks and Internet. 2 Objectives Computer Networks Computer Networks Internet Internet.
Management Information Systems - Introduction. The telecommunication system Telecommunication System – consists of hardware and software that transmits.
CHAPTER 8 Communication and Network Copyright © Cengage Learning. All rights reserved.
Paula Valdez 10MO ALFA BASIC CONCEPTS OF NETWORK.
Intro to MIS – MGS351 Network Basics
Nada Al Dosary CT 1502 Planning and Design of Communication Networks Local Area Networks (LANs) & Networks.
Telecommunication ELEC503
Network Basics Extended Learning Module E
أ.كمال عيد كلية المعلمين حائل
Intro To Computer Networks
2 Basic Concepts: data and computer networking
Introduction to Computer Administration
Basics of Telecommunications and Networks
Presentation transcript:

Local Area Network By Bhupendra Ratha, Lecturer School of Library and Information Science Devi Ahilya University, Indore Email: bhu261@gmail.com

Local Area Network LANs connect computers and peripheral devices in a limited physical area, such as a business, office, laboratory or college campus by means of permanent links (wires) that transmit data rapidly. A LAN consists of two or more personal computer, printers and high capacity disk storage device called file servers, which enable each computer on the network to access a common of files.

History of LAN In the last 15 year, LANs have gone from being an experimental technology to becoming a key business tool used by companies world wide. Today’s LANs and LAN internetworks are powerful, flexible and easy to use. A LAN to really benefit an organization it must be designed to meet the organizations changing communication requirements.

Characteristics of LANs Easily resource sharing. Data transfer rate are high. Small area covered by LAN Cost of setting up the network is usually low. Flexibility, low error rates and reliability of operation and simple maintenance.

Types of LANs The three most common types of LAN are; Cable based LAN Private Branch Exchange (PBX) Hierarchical networks

Cable base LAN In the cable based LAN all the node are connected by cable media and signals transmitted through the cables. Any type of cable are used in LAN such as coaxial, twisted-pair and fiber optical cable.

Private Branch Exchange In the private branch exchange many branches of a companies connected by telephone lines.

Hierarchical Network In this network use of connecting media both cable and telephone line.

LAN Standards In February 1980 the IEEE formed a project called project 802 to help define certain standards. The 802 specifications fall into 12 categories that are identified by the 802 numbers; 802.1 Internetworking and Management 802.2 Logical Link Control 802.3 Carrier Sense with Multiple Access and Collision Detection (CSMA/CD)

Cont… 802.4 Token bus LAN 802.5 Token Ring LAN 802.6 Metropolitan Area Network 802.7 Broadband Technical Advisory Group 802.8 Fiber-Optical Technical Advisory Group

Cont… 802.9 Integrated Voice/Data 802.10 Networks Network Security 802.11 Wireless Network 802.12 Demand Priority Access LAN

LAN Protocols A LAN protocol is a set of rules for communicating between computers. Protocols govern format, timing, sequencing and error control. Without these rules, the computer can’t make sense of the stream of incoming bits. Three types of LAN protocol Polling, contention and Token passing protocol.

LANs Topology LAN topologies define the manner in which network devices are organized. Four common LAN topologies exist; Bus Ring Star Tree

LAN Transmission Methods Commonly three LAN data transmissions methods are; Unicast Multicast Broadcast

Unicast In a unicast transmission a single packet is sent from the source to a destination on a network.

Multicast A multicast transmission consists of a single data packet that is copied and sent to the specific subset of nodes on the network.

Broadcast A broadcast transmission consists of a single data packets that is copied and sent to all nodes on the network.

Requirement for LAN Hardware In addition to computers, the hardware components needed to create LAN include the PCs, printers, scanners etc. Network cables Cable Interface Unit Network Interface Cards for each nodes

Types of LAN Models LANs can be of three types; Peer to peer Client-Server based

Peer to peer

Client-Server based

LAN software The primary software associated with LAN is the network operating system. This set of programs usually resides on the file server and provides services for adding new devices to the network, installing application software, diagnosis network problems and routing message.

Objective Q. on networking Q.1 Which of the following networking solution is suitable for networking within a building? LAN MAN WAN None above

Q.2 Data transfer rate for LAN is normally; 1bits-1mbps 1-100mbps 1mb-1gbps None above

Q.3 Which of the following topology share a single channel on which all station can receive and transmit data? Bus Ring Tree None above

Q.4 Which of the following topology every node have a transmitter, receiver and repeater? Bus Ring Star Tree

Q.5 In which topology data packet is remove resource destination? Bus Ring Tree None above

Q.6 Which protocol does the WWW use to transmit page on the internet? Ans. http (hyper Text Transmission protocol) Q.7 List of medias used in WANs Ans. Telephone lines, microwave and satellite.

Q.8 List of topologies. Ans. Bus, Ring, Star, Tree and Mesh topology. Q.9 Full form of ATP Ans. Apple-talk Transaction Protocol Q.10 Full form of AFP Ans. Apple-talk Filing Protocol

Q.11 in simplex transmission Data format is simple Data transmission is one way Data can be transmitted to small distances only None of the above

Q.12 in half duplex data transmission Data can be transmitted in one direction only Data can be transmitted in both directions Data can be transmitted in free flow None of the above

Twisted pair lines Coaxial cable Satellite None of the above Q.13 A large number of computers in a wide geographical area can be efficiently connected using Twisted pair lines Coaxial cable Satellite None of the above

Q.14 In modems Several digital signals are multiplexed A digital signals changes in analog and analog signals change in digital Digital signal is amplified None of the above

KHz MHz GHz None of the above Q.15 The frequency range used in satellite communication is of the order of KHz MHz GHz None of the above

Q.16 Data transfer rate in modems is measured in Bits per minute Bits per second Bandwidth None of the above

Q.17 what is the telecommunications? Any linking of two computers Linking two computers with direct high speed links Linking two computers through the telephone system None of the above