Local area network (LAN) Wide area networks (WANs) Circuit. Circuit switching. Packets. Based on Chapter 2 of Gary Schneider.

Size: px
Start display at page:

Download "Local area network (LAN) Wide area networks (WANs) Circuit. Circuit switching. Packets. Based on Chapter 2 of Gary Schneider."

Transcription

1 Local area network (LAN) Network of computers located close together Wide area networks (WANs) Networks of computers connected over greater distances Based on Chapter 2 of Gary Schneider. (2009). E-Business. E 8th Edition. Course Technology, Cengage Learning Circuit Combination of telephone lines and closed switches that connect them to each other 3 Computer network Any technology that allows people to connect computers to each other The Internet A large system of interconnected computer networks spanning the globe World Wide Web A subset of computers on the Internet 2 Circuit switching Centrally controlled, single-connection model Packets Files and messages on a packetswitched network are broken down into small pieces, called packets Travel from computer to computer along the interconnected networks until they reach their destinations 4

2 Routing computers Computers that decide how best to forward packets Routing algorithms Rules contained in programs on router computers that determine the best path on which to send packets Programs apply their routing algorithms to information they have stored in routing tables 5 Protocol Collection of rules for formatting, ordering, and error-checking data sent across a network Rules for message handling include: Independent networks should not require any internal changes to be connected to the network Packets that do not arrive at their destinations must be retransmitted from their source network Router computers act as receive-and-forward devices No global control exists over the network 7 TCP IP Controls disassembly of a message or a file into packets before transmission over the Internet Controls reassembly of packets into their original formats when they reach their destinations Specifies addressing details for each packet 6 8

3 Internet Protocol version 4 (IPv4) Uses a 32-bit number to identify computers connected to the Internet Base 2 (binary) number system Used by computers to perform internal calculations Subnetting Use of reserved private IP addresses within LANs and WANs to provide additional address space 9 A domain name is a set of words assigned to a specific IP address Top-level domain (or TLD) Rightmost part of a domain name Internet Corporation for Assigned Names and Numbers (ICANN) Responsible for managing domain names and coordinating them with IP address registrars 11 Private IP addresses Series of IP numbers not permitted on packets that travel on the Internet Network Address Translation (NAT) device Used in subnetting to convert private IP addresses into normal IP addresses Internet Protocol version 6 (IPv6) Protocol that will replace IPv4 Uses a 128-bit number for addresses 10 12

4 Web client computers Run software called Web client software or Web browser software Web server computers Run software called Web server software Client/server architecture Combination of client computers running Web client software and server computers running Web server software 13 Electronic mail ( ) Must be formatted according to a common set of rules server Computer devoted to handling client software Used to read and send Examples include Microsoft Outlook and Netscape Messenger 15 Hypertext Transfer Protocol (HTTP) Set of rules for delivering Web page files over the Internet Uniform Resource Locator (URL) Combination of the protocol name and domain name Allows a user to locate a resource (the Web page) on another computer (the Web server) 14 Simple Mail Transfer Protocol (SMTP) Specifies the format of a mail message Post Office Protocol (POP) POP messages can tell the server to: Send mail to a user s computer and delete it from the server Send mail to a user s computer and not delete it Simply ask whether new mail has arrived POP provides support for Multipurpose Internet Mail Extensions (MIME) 16

5 Text markup language Specifies a set of tags that are inserted into text Standard Generalized Markup Language (SGML) Older and more complex text markup language than HTML A meta language World Wide Web Consortium (W3C) Not-for-profit group that maintains standards for the Web 17 Offers a system of marking up documents that is independent of any software application Nonproprietary and platform independent Offers user-defined tags Costly to set up and maintain Prevalent markup language used to create documents on the Web today HTML tags are interpreted by a Web browser and are used by it to format the display of the text HTML links can be structured as: Linear hyperlink structures Hierarchical hyperlink structures 20

6 The most common scripting languages include JavaScript, JScript, Perl, and VBScript Cascading Style Sheets (CSS) are sets of instructions that give Web developers more control over the format of displayed pages Style sheet is: Usually stored in a separate file Referenced using the HTML style tag Intranet XML uses paired start and stop tags It includes data management capabilities that HTML cannot provide Interconnected network that does not extend beyond the organization that created it Differences between XML and HTML: Extranet XML is not a markup language with defined tags Intranet extended to include entities outside the boundaries of an organization XML tags do not specify how text appears on a Web page 22 Connects companies with suppliers, business partners, or other authorized users 24

7 Public network Any computer network or telecommunications network available to the public Private network A private, leased-line connection between two companies that physically connects their intranets Leased line Permanent telephone connection between two points VPN An extranet that uses public networks and their protocols IP tunneling Effectively creates a private passageway through the public Internet Encapsulation Process used by VPN software VPN software Must be installed on the computers at both ends of the transmission 26 Bandwidth Amount of data that can travel through a communication line per unit of time Net bandwidth Actual speed that information travels Symmetric connections Provide the same bandwidth in both directions Asymmetric connections Provide different bandwidths for each direction 28

8 POTS, or plain old telephone service Uses existing telephone lines and an analog modem Provides bandwidth between 28 and 56 Kbps Digital Subscriber Line (DSL) Connection methods that do not use a modem Integrated Services Digital Network (ISDN) Bandwidths between 128 Kbps and 256 Kbps 29 DS0 (digital signal zero) Telephone line designed to carry one digital signal T1 line (also called a DS1) Carries 24 DS0 lines and operates at Mbps Fractional T1 Provides service speeds of 128 Kbps and upward in 128-Kbps increments T3 service (also called DS3) Offers Mbps 31 Broadband connections operate at speeds of greater than 200 Kbps Asymmetric digital subscriber line (ADSL) Transmission bandwidth is from 100 to 640 Kbps upstream and from 1.5 to 9 Mbps downstream Cable modems Provide transmission speeds between 300 Kbps and 1 Mbps DSL Private line with no competing traffic 30 Bluetooth Designed for personal use over short distances Low-bandwidth technology, with speeds of up to 722 Kbps Networks are called personal area networks (PANs) or piconets Consumes very little power Devices can discover each other and exchange information automatically 32

9 Ultra Wideband (UWB) Developed for short-range secure communications in military during the 1960s Are expected to be used in the future personal area networking applications, such as home media centers and linking mobile phone to the Internet a protocol Capable of transmitting data at speeds up to 54 Mbps g protocol Has 54 Mbps speed of a Compatible with b devices n Expected to offer speeds up to 320 Mbps Wireless Ethernet (Wi-Fi or b) is the most common wireless connection technology for use on LANs Wireless access point (WAP) Device that transmits network packets between Wi-Fi-equipped computers and other devices Has a potential bandwidth of 11 Mbps and a range of about 300 feet Devices are capable of roaming One version of fixed-point wireless uses a system of repeaters to forward a radio signal from an ISP to customers Repeaters Transmitter-receiver devices (transceivers) Mesh routing Directly transmits Wi-Fi packets through hundreds, or even thousands, of shortrange transceivers 34 36

10 Third-generation (3G) cell phones Combine the latest technologies available today Short message service (SMS) Protocol used to send and receive short text messages Mobile commerce (m-commerce) Describes the kinds of resources people might want to access using wireless devices 37 Semantic Web Project by Tim Berners-Lee If successful, it would result in words on Web pages being tagged (using XML) with their meanings Resource description framework (RDF) Set of standards for XML syntax Ontology Set of standards that defines relationships among RDF standards and specific XML tags 39 Internet2 Experimental test bed for new networking technologies Has achieved bandwidths of 10 Gbps and more on parts of its network Used by universities to conduct large collaborative research projects 38

E-Business Tenth Edition. Chapter 2 E-Business Technology Basics

E-Business Tenth Edition. Chapter 2 E-Business Technology Basics E-Business Tenth Edition Chapter 2 E-Business Technology Basics Learning Objectives In this chapter, you will learn: About the origin, growth, and current structure of the Internet How packet-switched

More information

Full file at Chapter 2: Technology Infrastructure: The Internet and the World Wide Web

Full file at   Chapter 2: Technology Infrastructure: The Internet and the World Wide Web Chapter 2: Technology Infrastructure: The Internet and the World Wide Web TRUE/FALSE 1. Computer networks and the Internet form the basic technology structure that underlies all electronic commerce. T

More information

Full file at

Full file at ch02 True/False Indicate whether the statement is true or false. 1. Computer networks and the Internet form the basic technology structure that underlies all electronic commerce. 2. The USENET was the

More information

Chapter 2: Technology Infrastructure: The Internet and the World Wide Web

Chapter 2: Technology Infrastructure: The Internet and the World Wide Web Chapter 2: Technology Infrastructure: The Internet and the World Wide Web Student: 1. Networks of computers and the Internet that connects them to each other form the basic technological structure that

More information

Chapter 02 Technology Infrastructure The Internet and the World Wide Web

Chapter 02 Technology Infrastructure The Internet and the World Wide Web Chapter 02 Technology Infrastructure The Internet and the World Wide Web TRUEFALSE 1. Networks of computers and the Internet that connects them to each other form the basic technological structure that

More information

TEST BANK FOR ELECTRONIC COMMERCE 11TH EDITION BY GARY SCHNEIDER

TEST BANK FOR ELECTRONIC COMMERCE 11TH EDITION BY GARY SCHNEIDER TEST BANK FOR ELECTRONIC COMMERCE 11TH EDITION BY GARY SCHNEIDER Link download full: https://testbankservice.com/download/test-bank-forelectronic-commerce-11th-edition-by-schneider/ Chapter 02: Technology

More information

Chapter 7. Telecommunications, the Internet, and Wireless Technology

Chapter 7. Telecommunications, the Internet, and Wireless Technology Chapter 7 Telecommunications, the Internet, and Wireless Technology LEARNING OBJECTIVES What are the principal components of telecommunications networks and key networking technologies? What are the different

More information

The Internet and the World Wide Web

The Internet and the World Wide Web Technology Briefing The Internet and the World Wide Web TB5-1 Learning Objectives TB5-2 Learning Objectives TB5-3 How Did the Internet Get Started? Internet derived from internetworking 1960s U.S. Defense

More information

E-Commerce. Infrastructure I: Computer Networks

E-Commerce. Infrastructure I: Computer Networks E-Commerce Infrastructure I: Computer Networks Almost all computers today are networked or part of a distributed system. I will provide an overview of networking and a basic description of network technology.

More information

Special expressions, phrases, abbreviations and terms of Computer Networks

Special expressions, phrases, abbreviations and terms of Computer Networks access access point adapter Adderssing Realm ADSL (Asymmetrical Digital Subscriber Line) algorithm amplify amplitude analog antenna application architecture ARP (Address Resolution Protocol) AS (Autonomous

More information

Fundamentals of Information Systems, Seventh Edition

Fundamentals of Information Systems, Seventh Edition Fundamentals of Information Systems, Seventh Edition Chapter 4 Telecommunications, the Internet, Intranets, and Extranets Fundamentals of Information Systems, Seventh Edition 1 An Overview of Telecommunications

More information

16/06/56. Communications and Networks. Communications and Networks. Communications and Networks

16/06/56. Communications and Networks. Communications and Networks. Communications and Networks Discuss connectivity, the wireless revolution, and communication systems. Describe physical and wireless communications channels. Discuss connection devices and services, including dial-up, DSL, cable,

More information

Communications and Networks

Communications and Networks Information Technology Skills (DUT 122) CHAPTER 6: Communications and Networks Miss Wan Nor Ashiqin Wan Ali School of Human Development and Technocommunication Objectives Overview Discuss the purpose of

More information

6 Computer Networks 6.1. Foundations of Computer Science Cengage Learning

6 Computer Networks 6.1. Foundations of Computer Science Cengage Learning 6 Computer Networks 6.1 Foundations of Computer Science Cengage Learning Objectives After studying this chapter, the student should be able to: 6.2 Describe network criteria, physical structures and categories

More information

VISUAL SUMMARY COMMUNICATION CHANNELS COMMUNICATIONS. Communications and Networks

VISUAL SUMMARY COMMUNICATION CHANNELS COMMUNICATIONS. Communications and Networks Rev.Confirming Pages VISUAL SUMMARY Communications and Networks COMMUNICATIONS COMMUNICATION CHANNELS Communications is the process of sharing data, programs, and information between two or more computers.

More information

Chapter 7. Video cases:

Chapter 7. Video cases: Chapter 7 Telecommunications, the Internet, and Wireless Technology Video cases: Case 1: Telepresence Moves Out of the Boardrooom and Into the Field Case 2: Unified Communications Systems: Virtual Collaboration

More information

Communications and Networks The McGraw-Hill Companies, Inc. All rights reserved.

Communications and Networks The McGraw-Hill Companies, Inc. All rights reserved. Discuss connectivity, the wireless revolution, and communication systems. Describe physical and wireless communications channels. Discuss connection devices and services, including dial-up, DSL, cable,

More information

Typical Network Uses

Typical Network Uses Computer Networks Introduction The next Great Revolution - Computer Networks- computers connected together for exchanging information Our information-oriented society - applications in education, commerce,

More information

From administrivia to what really matters

From administrivia to what really matters From administrivia to what really matters Questions about the syllabus? Logistics Daily lectures, quizzes and labs Two exams and one long project My teaching philosophy...... is informed by my passion

More information

MIS 14e Ch07. Chapter 7 25/04/2016. Telecommunications, the Internet, and Wireless Technology

MIS 14e Ch07. Chapter 7 25/04/2016. Telecommunications, the Internet, and Wireless Technology MIS 14e Ch07 6.1 Copyright 2016 Pearson Education, Inc. publishing as Prentice Hall Chapter 7 Telecommunications, the Internet, and Wireless Technology Video cases: Case 1: Telepresence Moves Out of the

More information

Chapter 2 Communicating Over the Network

Chapter 2 Communicating Over the Network Chapter 2 Communicating Over the Network Elements of Communication Communicating the Messages Continuous stream of bits 00101010100101010101010101010101010 I have to wait Single communications (e.g. video,

More information

Principles of Information Systems textbook: Principles of Information Systems, Sixth Edition. Dr.Amer Alzaidi Department of Information Systems

Principles of Information Systems textbook: Principles of Information Systems, Sixth Edition. Dr.Amer Alzaidi Department of Information Systems + Principles of Information Systems textbook: Principles of Information Systems, Sixth Edition Dr.Amer Alzaidi Department of Information Systems Chapter 4 Telecommunications, the Internet, Intranets, and

More information

Network Communications Standards. Applied Information Technology

Network Communications Standards. Applied Information Technology Network Communications Standards Applied Information Technology Network Standards Why do we need network standards? Defined guidelines for how computers or networked devices communicate Think of it as

More information

The Internet Advanced Research Projects Agency Network (ARPANET) How the Internet Works Transport Control Protocol (TCP)

The Internet Advanced Research Projects Agency Network (ARPANET) How the Internet Works Transport Control Protocol (TCP) The Internet, Intranets, and Extranets 1 The Internet The Internet is a collection of interconnected network of computers, all freely exchanging information. These computers use specialized software to

More information

Connecting with Computer Science Chapter 5 Review: Chapter Summary:

Connecting with Computer Science Chapter 5 Review: Chapter Summary: Chapter Summary: The Internet has revolutionized the world. The internet is just a giant collection of: WANs and LANs. The internet is not owned by any single person or entity. You connect to the Internet

More information

It is the process of sharing data, programs, and information between two or more computers.

It is the process of sharing data, programs, and information between two or more computers. 1 Communications It is the process of sharing data, programs, and information between two or more computers. Numerous applications depend on communication systems: E-mail Instant messaging (IM) Internet

More information

Objectives. Connecting with Computer Science 2

Objectives. Connecting with Computer Science 2 Objectives Learn what the Internet really is Become familiar with the architecture of the Internet Become familiar with Internet-related protocols Understand how the TCP/IP protocols relate to the Internet

More information

Objectives Overview. Chapter 9 Networks and Communications. Discovering Computers Instructor: Imran Khalil MSc-IT 1 st semester Fall 2016

Objectives Overview. Chapter 9 Networks and Communications. Discovering Computers Instructor: Imran Khalil MSc-IT 1 st semester Fall 2016 Chapter 9 Networks and Communications Instructor: Imran Khalil MSc-IT 1 st semester Fall 2016 Discovering Computers 2012 Your Interactive Guide to the Digital World Objectives Overview Discuss the purpose

More information

CNT 4007 Computer Networks - Chapter 1 : Overview

CNT 4007 Computer Networks - Chapter 1 : Overview CNT 4007 Computer Networks - Chapter 1 : Overview Jonathan Kavalan, Ph.D. Department of Computer, Information Science and Engineering (CISE), University of Florida 1 Chapter 1: Introduction Our goal: get

More information

ACE Chapter 4 review. Name: Class: Date: True/False Indicate whether the statement is true or false.

ACE Chapter 4 review. Name: Class: Date: True/False Indicate whether the statement is true or false. Name: Class: Date: ACE Chapter 4 review True/False Indicate whether the statement is true or false. 1. Today s Internet joins together networks of over 300 million computers, or Internet hosts, to create

More information

Chapter. 6.1 Copyright 2011 Pearson Education, Inc. publishing as Prentice Hall

Chapter. 6.1 Copyright 2011 Pearson Education, Inc. publishing as Prentice Hall Chapter 6 Telecommunications, the Internet, and Wireless Technology 6.1 Copyright 2011 Pearson Education, Inc. publishing as Prentice Hall STUDENT LEARNING OBJECTIVES What are the principal components

More information

networks List various types of networks and their

networks List various types of networks and their Chapter 15 Networks Chapter Goals Describe the core issues related to computer networks List various types of networks and their characteristics Explain various topologies of local-area networks Explain

More information

Chapter by Prentice Hall

Chapter by Prentice Hall Chapter 6 Tl Telecommunications, the Internet, and Wireless Technology 6.1 2007 by Prentice Hall STUDENT LEARNING OBJECTIVES What are the principal components of telecommunications networks and key networking

More information

A+ Guide to Hardware: Managing, Maintaining, and Troubleshooting, 5e. Chapter 10 Networking Essentials

A+ Guide to Hardware: Managing, Maintaining, and Troubleshooting, 5e. Chapter 10 Networking Essentials A+ Guide to Hardware: Managing, Maintaining, and Troubleshooting, 5e Chapter 10 Networking Essentials Objectives Learn about hardware devices used for networking Learn about the different types of networks

More information

WAN Technology & Design. Dr. Nawaporn Wisitpongphan

WAN Technology & Design. Dr. Nawaporn Wisitpongphan WAN Technology & Design Dr. Nawaporn Wisitpongphan 1 WAN Connection Modules 2 WAN Comparison 3 Integrated Services Digital Network (ISDN) All-digital phone line connection Technology since 1980s Allow

More information

CS WEB TECHNOLOGY

CS WEB TECHNOLOGY CS1019 - WEB TECHNOLOGY UNIT 1 INTRODUCTION 9 Internet Principles Basic Web Concepts Client/Server model retrieving data from Internet HTM and Scripting Languages Standard Generalized Mark up languages

More information

Chapter 4: Networking and the Internet. Network Classifications. Network topologies. Network topologies (continued) Connecting Networks.

Chapter 4: Networking and the Internet. Network Classifications. Network topologies. Network topologies (continued) Connecting Networks. Chapter 4: Networking and the 4.1 Network Fundamentals 4.2 The 4.3 The World Wide Web 4.4 Protocols 4.5 Security Network Classifications Scope Local area network (LAN) Metropolitan area (MAN) Wide area

More information

Introduction to Information Technology Turban, Rainer and Potter John Wiley & Sons, Inc. Copyright 2005

Introduction to Information Technology Turban, Rainer and Potter John Wiley & Sons, Inc. Copyright 2005 Introduction to Information Technology Turban, Rainer and Potter John Wiley & Sons, Inc. Copyright 2005 Network and Telecommunications Basics Chapter Outline The telecommunications system Network services

More information

HTML, XHTML, and CSS. Sixth Edition. Chapter 1. Introduction to HTML, XHTML, and

HTML, XHTML, and CSS. Sixth Edition. Chapter 1. Introduction to HTML, XHTML, and HTML, XHTML, and CSS Sixth Edition Chapter 1 Introduction to HTML, XHTML, and CSS Chapter Objectives Describe the Internet and its associated key terms Describe the World Wide Web and its associated key

More information

Management Information Systems

Management Information Systems Telecommunications, the Internet, and Wireless Technology Lecturer: Richard Boateng, PhD. Lecturer in Information Systems, University of Ghana Business School Executive Director, PearlRichards Foundation,

More information

ITP 140 Mobile Applications Technologies. Networks

ITP 140 Mobile Applications Technologies. Networks ITP 140 Mobile Applications Technologies Networks A First Look Under the Hood 2 3 Communication Channels Mediums for transporting data from one system to another Physical Twisted Pair (CAT-3, CAT-5/6)

More information

Özgür ZEYDAN (PhD.)

Özgür ZEYDAN (PhD.) Özgür ZEYDAN (PhD.) http://cevre.beun.edu.tr/zeydan/ Computer Network A group of computer systems and other computing hardware devices that are linked together through communication channels. Purpose:

More information

CHAPTER -1. Introduction to Computer Networks

CHAPTER -1. Introduction to Computer Networks CHAPTER -1 Introduction to Computer Networks PRELIMINARY DEFINITIONS computer network :: [Tanenbaum] a collection of autonomous computers interconnected by a single technology. communications network ::a

More information

Chapter 7 TELECOMMUNICATIONS, THE INTERNET, AND WIRELESS TECHNOLOGY. Management Information Systems MANAGING THE DIGITAL FIRM, 12 TH EDITION

Chapter 7 TELECOMMUNICATIONS, THE INTERNET, AND WIRELESS TECHNOLOGY. Management Information Systems MANAGING THE DIGITAL FIRM, 12 TH EDITION MANAGING THE DIGITAL FIRM, 12 TH EDITION Chapter 7 TELECOMMUNICATIONS, THE INTERNET, VIDEO CASES Case 1: Traveling the Internet and Wireless Technology Case 2: Unified Communications Systems With Virtual

More information

Class X Subject : IT (Vocational) Chapter -1 Ouestion / Answer

Class X Subject : IT (Vocational) Chapter -1 Ouestion / Answer Class X Subject : IT (Vocational) Chapter -1 Ouestion / Answer Q1 What is a computer network? A computer network, often simply referred to as a network, is a collection of computers and other hardware

More information

Chapter 15 Networks. Chapter Goals. Networking. Chapter Goals. Networking. Networking. Computer network. Node (host) Any device on a network

Chapter 15 Networks. Chapter Goals. Networking. Chapter Goals. Networking. Networking. Computer network. Node (host) Any device on a network Chapter Goals Chapter 15 Networks Describe the core issues related to computer networks List various types of networks and their characteristics Explain various topologies of local-area networks Explain

More information

A network is a group of two or more computers that are connected to share resources and information.

A network is a group of two or more computers that are connected to share resources and information. Chapter 1 Introduction to HTML, XHTML, and CSS HTML Hypertext Markup Language XHTML Extensible Hypertext Markup Language CSS Cascading Style Sheets The Internet is a worldwide collection of computers and

More information

Router Router Microprocessor controlled traffic direction home router DSL modem Computer Enterprise routers Core routers

Router Router Microprocessor controlled traffic direction home router DSL modem Computer Enterprise routers Core routers Router Router is a Microprocessor controlled device that forwards data packets across the computer network. It is used to connect two or more data lines from different net works. The function of the router

More information

WAN Technologies CCNA 4

WAN Technologies CCNA 4 WAN Technologies CCNA 4 Overview Note: Most of this will be described in more detail in later chapters. Differentiate between a LAN and WAN Identify the devices used in a WAN List WAN standards Describe

More information

Telephone. Basic Telephone. A telephone is an electronic device used for two- way talking with other people. EE1D01 Electrical Science for Everyone

Telephone. Basic Telephone. A telephone is an electronic device used for two- way talking with other people. EE1D01 Electrical Science for Everyone Telephone A telephone is an electronic device used for two- way talking with other people. 1 Basic Telephone Telephone Subscriber Line CO (Local Exchange) T dial switch cradle switch tip (+) ear R mouth

More information

A+ Guide to Hardware: Managing, Maintaining, and Troubleshooting, 5e. Chapter 10 Networking Essentials

A+ Guide to Hardware: Managing, Maintaining, and Troubleshooting, 5e. Chapter 10 Networking Essentials A+ Guide to Hardware: Managing, Maintaining, and Troubleshooting, 5e Chapter 10 Networking Essentials Objectives Learn about hardware devices used for networking Learn about the different types of networks

More information

Chapter 1: introduction

Chapter 1: introduction Chapter 1: introduction our goal: v get feel and terminology v more depth, detail later in course v approach: use Internet as example overview: v what s the Internet? v what s a protocol? v edge; hosts,

More information

Wide Area Networks (WANs) Slide Set 6

Wide Area Networks (WANs) Slide Set 6 Wide Area Networks (WANs) Slide Set 6 Wide Area Networks (WANs) WAN Purposes Link sites (usually) within the same corporation Remote access for individuals who are off-site Internet access for individuals

More information

Computer Networks. Computer Networks. Telecommunication Links. CMPUT101 Introduction to Computing - Spring Chapter 12: Computer Networks 1

Computer Networks. Computer Networks. Telecommunication Links. CMPUT101 Introduction to Computing - Spring Chapter 12: Computer Networks 1 Computer Networks Chapter 12 Topics: Communication links LAN / WAN Internet / WWW CMPUT101 Introduction to Computing (c) Yngvi Bjornsson 1 Computer Networks A computer network is a set of independent computer

More information

The Internet and How It Works 12 11/21/2016. Define what a computer network is, and how networks are conceptually structured.

The Internet and How It Works 12 11/21/2016. Define what a computer network is, and how networks are conceptually structured. Chapter 12 The Internet and How It Works Learning Objectives This lesson introduces students to Internet basics. At the end of the lesson, the students will be able to: Discuss the origins of the Internet.

More information

Component 4: Introduction to Information and Computer Science

Component 4: Introduction to Information and Computer Science Component 4: Introduction to Information and Computer Science Unit 2: Internet and the World Wide Web Lecture 1 This material was developed by Oregon Health & Science University, funded by the Department

More information

T e l e c o m m u n i c a t i o n s, t h e i n t e r n e t, a n d W i r e l e s s t e c h n o l o g y

T e l e c o m m u n i c a t i o n s, t h e i n t e r n e t, a n d W i r e l e s s t e c h n o l o g y T e l e c o m m u n i c a t i o n s, t h e i n t e r n e t, a n d W i r e l e s s t e c h n o l o g y C h a p t e r 7 Jun Akizaki The Power of PowerPoint WELCOME group members: 1. Dewi Setyani 16808144017

More information

Internet Architecture

Internet Architecture Internet Architecture Lecture 3: How TCP/IP Works & Understanding the Internet's Software Structure Assistant Teacher Samraa Adnan Al-Asadi 1 How TCP/IP Works Packet: A piece of data broken down into pieces

More information

Technology in Action. Chapter 13 Behind the Scenes: The Internet: How It Works Prentice-Hall, Inc.

Technology in Action. Chapter 13 Behind the Scenes: The Internet: How It Works Prentice-Hall, Inc. Technology in Action Chapter 13 Behind the Scenes: The Internet: How It Works 1 Chapter Topics Managing the Internet Interaction between Internet components Internet data transmission and protocols IP

More information

Lecture #25: Networks and Communications. Communication and Networks. What will we learn?

Lecture #25: Networks and Communications. Communication and Networks. What will we learn? Lecture #25: Networks and Communications Communication and Networks What will we learn? How a communications system works What a network is What networks used for What network operating systems do What

More information

end systems, access networks, links circuit switching, packet switching, network structure

end systems, access networks, links circuit switching, packet switching, network structure Introduction Chapter 1: roadmap 1.1 What is the Internet? 1.2 Network edge end systems, access networks, links 1.3 Network core circuit switching, packet switching, network structure 1.4 Delay, loss and

More information

Chapter 1: Introduction

Chapter 1: Introduction Chapter 1: Introduction Our goal: get context, overview, feel of networking more depth, detail later in course approach: descriptive use Internet as example Overview: what s the Internet what s a protocol?

More information

Chapter 9. Introduction. Communications

Chapter 9. Introduction. Communications Chapter 9 Communications and Networks McGraw-Hill/Irwin Copyright 2008 by The McGraw-Hill Companies, Inc. All rights reserved. 1 Introduction Page 247 Cell phones and other wireless technologies are allowing

More information

Network basics. Unit objectives Describe the basic components of a network Identify characteristics of network technologies Analyze the OSI model

Network basics. Unit objectives Describe the basic components of a network Identify characteristics of network technologies Analyze the OSI model Network basics Unit objectives Describe the basic components of a network Identify characteristics of network technologies Analyze the OSI model Topic A Topic A: Network concepts Topic B: Network architectures

More information

ITP 140 Mobile Applications Technologies. Networks

ITP 140 Mobile Applications Technologies. Networks ITP 140 Mobile Applications Technologies Networks A First Look Under the Hood 2 3 Communication Channels Mediums for transporting data from one system to another Physical Twisted Pair (CAT-3, CAT-5/6)

More information

How the Web Works. Chapter 1. Modified by Marissa Schmidt Pearson

How the Web Works. Chapter 1. Modified by Marissa Schmidt Pearson How the Web Works Chapter 1 Modified by Marissa Schmidt 2015 Pearson Fundamentals ofhttp://www.funwebdev.com Web Development Objectives 1 Definitions and History 2 Internet Protocols 3 Client-Server Model

More information

Intranets and Virtual Private Networks (VPNs)

Intranets and Virtual Private Networks (VPNs) Intranets and Virtual Private Networks (VPNs) Definition Private networking involves securely transmitting corporate data across multiple sites throughout an entire enterprise. Creating a truly private

More information

ECS 15; Lectures 17 and 18. The Internet. What is the internet, and how does it work? TA feedback

ECS 15; Lectures 17 and 18. The Internet. What is the internet, and how does it work? TA feedback ECS 15; Lectures 17 and 18 The Internet What is the internet, and how does it work? TA feedback Python -- Run your code!! Term paper: Start a paragraph with the point of the paragraph, not in modern times

More information

Part I: Introduction. 1: Introduction 1

Part I: Introduction. 1: Introduction 1 Part I: Introduction Chapter goal: get context, overview, feel of networking more depth, detail later in course approach: descriptive use Internet as example Overview: what s the Internet what s a protocol?

More information

Technology in Action. Chapter 13 Behind the Scenes: The Internet: How It Works. Copyright 2010 Pearson Education, Inc. Publishing as Prentice Hall

Technology in Action. Chapter 13 Behind the Scenes: The Internet: How It Works. Copyright 2010 Pearson Education, Inc. Publishing as Prentice Hall Technology in Action Chapter 13 Behind the Scenes: The Internet: How It Works 1 Management of the Internet Who owns the Internet? No one Individuals Universities Government agencies Private companies Committees

More information

Background of HTML and the Internet

Background of HTML and the Internet Background of HTML and the Internet World Wide Web in Plain English http://www.youtube.com/watch?v=akvva2flkbk Structure of the World Wide Web A network is a structure linking computers together for the

More information

Chapter 9 Introduction to Networks

Chapter 9 Introduction to Networks Chapter 9 Introduction to Networks 9.1 Uses of a network Networks are used in many situations. We can see networks in places like offices, airports and factories. In fact we use networks in many situations

More information

WHAT IS THE INTERNET?

WHAT IS THE INTERNET? The Internet WHAT IS THE INTERNET? A world-wide network of computers allows people to share information electronically It is a BIG book with many web-pages on different topics. It Can be accessed anywhere

More information

Contents 1 INTRODUCTION TO COMPUTER NETWORKS...

Contents 1 INTRODUCTION TO COMPUTER NETWORKS... Contents 1 INTRODUCTION TO COMPUTER NETWORKS... 1.1 LAN's & WAN's... 1.2 Some network and internetwork components... File Server... Workstation. Topologies and Protocol... Repeaters. Hubs (concentrators)...

More information

CPEG514 Advanced Computer Networks. Atef Abu Salim University of Nizwa Spring 2013/2014

CPEG514 Advanced Computer Networks. Atef Abu Salim University of Nizwa Spring 2013/2014 CPEG514 Advanced Computer Networks Atef Abu Salim University of Nizwa Spring 2013/2014 Today s Class Topics Course Syllabus Computer Networks LANs and WANs The Internet Protocols, Layers and Interfaces

More information

Networking. Networking and Communication Trends Convergence (Accessibility) Speed Stability Simplicity* Embeddedness

Networking. Networking and Communication Trends Convergence (Accessibility) Speed Stability Simplicity* Embeddedness Networking and Communication Trends Convergence (Accessibility) Speed Stability Simplicity* Embeddedness What is a Computer Network General definition Related hardware Network Interface Card Network Operating

More information

NT1210 Introduction to Networking. Unit 9:

NT1210 Introduction to Networking. Unit 9: NT1210 Introduction to Networking Unit 9: Chapter 9, The Internet Objectives Identify the major needs and stakeholders for computer networks and network applications. Identify the classifications of networks

More information

6 Computer Networks 6.1. Foundations of Computer Science Cengage Learning

6 Computer Networks 6.1. Foundations of Computer Science Cengage Learning 6 Computer Networks 6.1 Foundations of Computer Science Cengage Learning Objectives After studying this chapter, the student should be able to: 6.2 Describe network criteria, physical structures and categories

More information

Business Data Communications and Networking

Business Data Communications and Networking Business Data Communications and Networking 10th Edition Jerry Fitzgerald and Alan Dennis John Wiley & Sons, Inc Dwayne Whitten, D.B.A Mays Business School Texas A&M University http://alainmaterials.webs.com/

More information

Internet Architecture & Performance. What s the Internet: nuts and bolts view

Internet Architecture & Performance. What s the Internet: nuts and bolts view Internet Architecture & Performance Internet, Connection, Protocols, Performance measurements What s the Internet: nuts and bolts view millions of connected computing devices: hosts, end systems pc s workstations,

More information

Internet. Class-In charge: S.Sasirekha

Internet. Class-In charge: S.Sasirekha Internet Class-In charge: S.Sasirekha COMPUTER NETWORK A computer network is a collection of two or more computers, which are connected together to share information and resources. Network Operating Systems

More information

TELECOMMUNICATIONS, THE

TELECOMMUNICATIONS, THE Chapter 7 MANAGING THE DIGITAL FIRM, 12 TH EDITION TELECOMMUNICATIONS, THE INTERNET, VIDEO CASES Case 1: Traveling the Internet and Wireless Technology Case 2: Unified Communications Systems With Virtual

More information

Web Engineering (CC 552)

Web Engineering (CC 552) Web Engineering (CC 552) Introduction Dr. Mohamed Magdy mohamedmagdy@gmail.com Room 405 (CCIT) Course Goals n A general understanding of the fundamentals of the Internet programming n Knowledge and experience

More information

Lecture 22 Overview. Last Lecture. This Lecture. Next Lecture. Internet Applications. ADSL, ATM Source: chapter 14

Lecture 22 Overview. Last Lecture. This Lecture. Next Lecture. Internet Applications. ADSL, ATM Source: chapter 14 Last Lecture Lecture 22 Overview Internet Applications This Lecture ADSL, ATM Source: chapter 14 Next Lecture Wireless Networking Source: chapter 15 COSC244 & TELE202 Lecture 22 - ADSL, ATM 1 Modem Enable

More information

AQU Information Systems Fundamentals Spring 2012 Pg. 9.1

AQU Information Systems Fundamentals Spring 2012 Pg. 9.1 AQU Information Systems Fundamentals Spring 2012 Pg. 9.1 c h a p t e r 9 THE INTERNET & THE NEW INFORMATION TECHNOLOGY INFRASTRUCTURE 9.1 LEARNING OBJECTIVES Describe features of infrastructure & connectivity

More information

1. Web Technology... 6

1. Web Technology... 6 TABLE OF CONTENTS 1. Web Technology... 6 1.1. Introduction (Hypertext, URL, Domain Name)...6 1.2. Web Browser and ISP...8 1.3. Upload and download files...10 1.4. Control of Internet...10 2. E-mail components

More information

Chapter 3 The Basics of Networking

Chapter 3 The Basics of Networking Fluency with Information Technology 7 th Edition Chapter 3 The Basics of Networking HTML Hypertext Markup Language Layout of document (Margin, font, text, image, ) Jump from point to point (non-linear)

More information

Outline. Internet and World Wide Web. History of the Internet. What is the Internet? How Does Data Travel Through the Internet?

Outline. Internet and World Wide Web. History of the Internet. What is the Internet? How Does Data Travel Through the Internet? Outline Internet and World Wide Web Internet World Wide Web Creating Web Pages CS 1410 Intro to Computer Tecnology Internet and World Wide Web 2 What is the Internet? The internet is a network of networks

More information

Chapter Topics. The History of the Internet. Chapter 7: Computer Networks, the Internet, and the World Wide Web

Chapter Topics. The History of the Internet. Chapter 7: Computer Networks, the Internet, and the World Wide Web Chapter Topics Chapter 7: Computer Networks, the Internet, and the World Wide Web CS10051: Intro. to Computer Science Kent State University History of the Internet History of the World Wide Web Internet

More information

Computers Are Your Future Eleventh Edition Chapter 7: Networks: Communicating & Sharing Resources

Computers Are Your Future Eleventh Edition Chapter 7: Networks: Communicating & Sharing Resources Computers Are Your Future Eleventh Edition Chapter 7: Networks: Communicating & Sharing Resources Copyright 2011 Pearson Education, Inc. Publishing as Prentice Hall 1 All rights reserved. No part of this

More information

BLM6196 COMPUTER NETWORKS AND COMMUNICATION PROTOCOLS

BLM6196 COMPUTER NETWORKS AND COMMUNICATION PROTOCOLS BLM6196 COMPUTER NETWORKS AND COMMUNICATION PROTOCOLS Prof. Dr. Hasan Hüseyin BALIK (1 st Week) Outline Course Information and Policies Course Syllabus 1. Data Communications, Data Networks, and the Internet

More information

Acknowledgment and Disclaimer:

Acknowledgment and Disclaimer: What is the Internet Acknowledgment and Disclaimer: This presentation is supported in part by the National Science Foundation under Grant 1240841. Any opinions, findings, and conclusions or recommendations

More information

CSIS Frequency Division Multiplexing. Basic Types of Multiplexing. Frequency Division Multiplexing. Frequency Division Multiplexing.

CSIS Frequency Division Multiplexing. Basic Types of Multiplexing. Frequency Division Multiplexing. Frequency Division Multiplexing. Multiplexing: combining information streams from multiple sources for transmission over a shared medium Demultiplexing: separating a combination back into individual information streams CSIS 4222 Ch 11:

More information

Chapter 3. E-commerce The Evolution of the Internet 1961 Present. The Internet: Technology Background. The Internet: Key Technology Concepts

Chapter 3. E-commerce The Evolution of the Internet 1961 Present. The Internet: Technology Background. The Internet: Key Technology Concepts E-commerce 2015 business. technology. society. eleventh edition Kenneth C. Laudon Carol Guercio Traver Chapter 3 E-commerce Infrastructure: The Internet, Web, and Mobile Platform Copyright 2015 Pearson

More information

A typical WAN structure includes the following components.

A typical WAN structure includes the following components. CBCN4103 WAN is a computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more LANs. A WAN is a network usually provided by a specialised company called a

More information

Load Balance Mechanism

Load Balance Mechanism Load Balance Application in Dual-WAN Interface Load Balance Mechanism To which WAN port the traffic will be routed is determined according to the Load Balance mechanism. Below diagram shows how Vigor router

More information

Session 4 Networks II

Session 4 Networks II 15.561 Information Technology Essentials Session 4 Networks II Copyright 2005 Thomas Malone, Chris Dellarocas Acknowledgments: Slides marked CD are adapted from Chris Dellarocas, U. Md.. Outline Network

More information

Dr./ Ahmed Mohamed Rabie Sayed

Dr./ Ahmed Mohamed Rabie Sayed 1 Dr./ Ahmed Mohamed Rabie Sayed 2 A network is a group of two or more computer systems linked together to exchange data and share resources, including expensive peripherals. 3 A local area network (LAN)

More information

Pengantar Teknologi Informasi dan Teknologi Hijau. Suryo Widiantoro, ST, MMSI, M.Com(IS)

Pengantar Teknologi Informasi dan Teknologi Hijau. Suryo Widiantoro, ST, MMSI, M.Com(IS) Pengantar Teknologi Informasi dan Teknologi Hijau Suryo Widiantoro, ST, MMSI, M.Com(IS) 1 Topics covered 1. From analog to digital age 2. Networks 3. Wired-communication data 4. Wireless-communication

More information

Overview of the Internet

Overview of the Internet Overview of the Internet IVPR 1 Outline Goals and Objectives Topics headlines Introduction Internet and WWW Client/Server Model Diagnostic commands Evolution of Internet Transmission IP Addresses and Domain

More information