7/12: Ch. 6 Telecommunications Business Value of Telecommunications Trends –Industry –Technology –Application Internet applications Network models –WANs,

Slides:

Advertisements

Similar presentations

Unit 5 Terminology Study Assignment Review Computer Technology

Advertisements

Information Technology Foundations-BIT 112 TECHNOLOGY GUIDE FOUR Basics of Telecommunications and Networks.

Telecommunications & Networking. TELECOMMUNICATIONS: Communications (both voice and data) at a distance TELECOMMUNICATIONS: Communications (both voice.

1 McGraw-Hill/Irwin Copyright © 2004, The McGraw-Hill Companies, Inc. All rights reserved. Chapter 4 Telecommunications and Networks.

Chapter 6 Telecommunications & Networks.

99 CHAPTER COMMUNICATIONS AND NETWORKS. © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 9-2 Competencies Discuss connectivity, the wireless.

Telecommunications Chapter 5 Chapter 5 Telecommunications

Telecommunications and Networks Business value of networks Network components Chapter 6 McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies,

1 Chapter 7 Networking: Computer Connections. Basic Components of a Network Sending device Communications link Receiving device.

McGraw-Hill/Irwin Copyright © 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 9 Communications and Networks.

Telecommunication and Networks

CHAPTER Copyright 2003 The McGraw-Hill Companies, Inc.Copyright 2003 The McGraw-Hill Companies, Inc. 1 Connectivity, the Wireless Revolution, and Communications.

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

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.

Introduction to Networking. Key Terms packet  envelope of data sent between computers server  provides services to the network client  requests actions.

Lead Black Slide Powered by DeSiaMore1. 2 Chapter 6 Information System Networks and the Internet.

Communications & Networks

6-1 Extranet Uses. 6-2 Case 2: Maryland and Colorado Serving their customers without using wires Earth Alert Emergency Management System in Maryland provides.

Laudon & Laudon: Canadian Edition

Telecommunications and Networks Chapter 6 – Understanding Technology (Third Edition)

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

Technology Guide 4 Telecommunication & Internet. Agenda Telecommunication terminology Communication media Network architecture concepts Enterprise networking.

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

Management Information Systems

Telecommunications and Networks

Networking Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources Usually,

Business Telecommunications

Chapter 6 Telecommunications and Networks. 2 I. Networking the Organization  Merging computing and communications yields computer networks which are.

1 Networks and Telecommunications. 2 Applying Telecommunications in Business TELECOMMUNICATIONS – the transmission of data between devices in different.

Introduction to Networking. Key Terms packet  envelope of data sent between computers server  provides services to the network client  requests actions.

Networks and Networking Chapter 4 Copyright Prentice-Hall, Inc

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

The Infrastructure Technologies. Communication All communications require: Transmitters/Senders and receivers Transmission medium Rules of communication.

Unit 1—Computer Basics Lesson 7 Networks.

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

1 California State University, Fullerton Chapter 6 Information System Networks and the Internet.

Technology Strategies for the Hospitality Industry© 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Networks.

PPTTEST 10/6/ :29 1 IT Ron Williams Business Innovation Through Information Technology Networking.

6-1 McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies, Inc. All rights reserved.

6-1 McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies, Inc. All rights reserved.

Living Online Module Lesson 23 — Networks and Telecommunication

15-1 Networking Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources.

$100 $200 $300 $400 $500 Network topologies Client Architecture Physical Transmission Media Uses of Tele communications Misc. Network Misc. Network.

1 CHAPTER 8 TELECOMMUNICATIONSANDNETWORKS. 2 TELECOMMUNICATIONS Telecommunications: Communication of all types of information, including digital data,

Networks Information Systems and Management. Telecommunications Definition: The exchange of data in any form (voice, data, text, images) over computer-based.

Introduction to Information Systems Lecture 06 Telecommunications and Networks Business Value of Networks Jaeki Song.

Telecommunications, the Internet, and Wireless Technology.

Telecommunications and Networks Chapter 8. Types of Signals Analog – a continuous waveform that passes through a communications medium Digital signal.

Electronic Commerce and the Internet Chapter 6. Chapter Objectives Describe what the Internet is and how it works Explain packet-switching and TCP/IP.

Living Online Module Lesson 23 — Networks and Telecommunication Computer Literacy BASICS.

3/20: Telecommunications & Networking What is telecommunications? The hardware: physical components of telecommunications, inc. channels Standards: agreements.

TELECOMMUNICATIONS AND NETWORKS

Communications and Networks Chapter 9 9-1Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.

Chapter 6 Telecommunications and Networking Slide 1 Well, Sort-of.

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

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.

Lesson 7 Networks Unit 1—Computer Basics. Computer Concepts BASICS - 2 Objectives Describe the benefits and disadvantages of networks. List and describe.

Computer Networks and Internet. 2 Objectives Computer Networks Computer Networks Internet Internet.

7.1 © 2010 by Prentice Hall 4 Chapter Telecommunications, the Internet, and Wireless Technology.

Telecommunications and Networks Business value of networks The Internet Network components Chapter 6.

SESI X.  Network ◦ An interconnected chain, group or system  Number of possible connections on a network is N * (N-1) ◦ Where N = number of nodes (points.

99 CHAPTER COMMUNICATIONS AND NETWORKS. © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 9-2 Competencies Discuss connectivity, the wireless.

COMMUNICATION AND NETWORKS 99 computing ESSENTIALS

Chapter5 TELECOMMUNICATIONS AND NETWORKS. Content Networking the Enterprise Trends in Telecommunications The Business Value of Telecommunications Networks.

Networks and Networking

Computer Technology Notes #4

Presentation transcript:

7/12: Ch. 6 Telecommunications Business Value of Telecommunications Trends –Industry –Technology –Application Internet applications Network models –WANs, LANs, Internetworks, Intranets, Extranets, Client/Server, Interorganizational

Business Value How businesses use telecommunications –enterprise collaboration –electronic commerce –internal business Business Value of Telecommunications –overcoming barriers: geographical, time, cost, structural

Trends Industry –increased number of suppliers –deregulation act create more suppliers Technology –Open systems increase connectivity –Digital overtakes analog –Wireless Application –applying telecommunications to every aspect of busines

Internet Applications origins: ARPANET – Defense Dept. project WWW – Tim Berners-Lee at CERN (Switz.) Usenet (newsgroups) IRC (chat rooms, AIM) FTP Telnet

Network Models basic model: –terminal – processor – channel – processor – terminal –includes software at most points

Network Models WAN – Wide Area Network LAN – Local Area Network –network servers, shared peripherals, etc. Internetworks – Networked LANs –using processors: switches, routers, hubs, gateways Intranets & Extranets – WWW for internal & external use -- VPNs Client/Server – applications reside on server –client programs reside on terminals (PCs)

Part 2: Alternatives Media choices –Twisted pair, coaxial cable, fiber optics, microwaves, satellites, cellular phone systems, wireless LANs Processors –Modems, multiplexers, internetwork processors Software – common functions Network Topologies –Star, bus, ring Architecture & Protocols –TCP/IP, OSI

Media Choices Twisted Pair Wire –telephone wire Coaxial Cable –cable TV Fiber Optics –glass fibers use light to transmit data images courtesy of mag-nify.educ.monash.edu.au, 3Com.com

Media Choices Terrestrial Microwaves –line-of-sight up to 30 miles apart Communication Satellites –DirectPC, DirectTV Cellular Phone Systems Wireless LANs –radio, infrared images courtesy of mitsubishi.com

Processor Choices Modems –Analog modems (telephone) –ISDN, Cable, DSL modems Multiplexers –allow multiple users on same channel –FDM, TDM, STDM Internetwork Processors –switches, hubs - complete connections –routers, gateways – interfaces for networks image courtesy of 3Com

Software Access control –autodialers, log-ins, etc. Transmission control –error checking (parity checking) –transmission of data, etc. (often file transfer) Network management –prioritizes traffic on network –prevents (or deals with) data collisions, etc. Security management –includes encryption, access validation

Network Topologies nodes, hubs, backbones, servers Star –central server control Bus –like a highway Ring –control gets handed off from node to node

Architecture & Protocols circuit-switched networks –telephone conversation: whole circuit reserved packet-switched networks –shared passages, packets of information being sent –Internet: packet-switched (ex. TCP)

Internet Protocol (IP) address: 4 separate 3-digit numbers separated by periods looking up IPs at Internic.net –URLs are used to look up IP addresses at Domain Name Servers (DNS)

Transmission Control Protocol (TCP) breaks message into manageable chunks and sends them separately like packing up a house’s contents to move big file #9#8#7 #6#5#4 #3#2#1