Chapter 8 - Internet: The Early Years Many Independent Networks The Proliferation Of LANS Facts About LANs –Engineers have devised many LAN technologies.

Slides:



Advertisements
Similar presentations
The Internet.
Advertisements

Basic Internet Terms Digital Design. Arpanet The first Internet prototype created in 1965 by the Department of Defense.
CE80N Introduction to Networks & The Internet Dr. Chane L. Fullmer UCSC Winter 2002.
A Brief History of the Internet. Internet: The early years … The Proliferation of LANs  Engineers have devised many LAN technologies  LAN performance.
CSCI 4550/8556 Computer Networks
© 2009 Pearson Education Inc., Upper Saddle River, NJ. All rights reserved.1 Computer Networks and Internets, 5e By Douglas E. Comer Lecture PowerPoints.
© 2007 Pearson Education Inc., Upper Saddle River, NJ. All rights reserved.1 Computer Networks and Internets with Internet Applications, 4e By Douglas.
CSCI 4550/8556 Computer Networks Comer, Chapter 1: Introduction.
Mgt 20600: IT Management & Applications Telecommuncations and Networks Tuesday March 28, 2006.
1 Fall 2005 Internetworking: Concepts, Architecture and TCP/IP Layering Qutaibah Malluhi CSE Department Qatar University.
© 2007 Pearson Education Inc., Upper Saddle River, NJ. All rights reserved.1 Computer Networks and Internets with Internet Applications, 4e By Douglas.
Internet: A Network of Networks. Spring 2002Computer Networks Applications Disparate Network Technologies Different goals: Speed, cost, distance; Different.
Chapter 1 Read (again) chapter 1.
EE 4272Spring, 2003 EE4272: Computer Networks Instructor: Tricia Chigan Dept.: Elec. & Comp. Eng. Spring, 2003.
1 Computer Networks and Internets, 5e By Douglas E. Comer Lecture PowerPoints Adapted from the notes By Lami Kaya, © 2009 Pearson Education.
CS335 Networking & Network Administration Tuesday April 27, 2010.
Lesson 19 Internet Basics.
1 CS 4396 Computer Networks Lab The Internet. 2 A Definition On October 24, 1995, the FNC unanimously passed a resolution defining the term Internet.
Networking LAN (Local Area Network) A network is a collection of computers that communicate with each other through a shared network medium. LANs are.
Computer Applications Unit B Networks. Network By definition, a network is a network that allows computers to exchange data. Devices on a network that.
CSI315 Lecture 1 WEEK 1. The Internet A world-wide network of millions of computers connected to share information and communication. The interconnected.
LAN Local Area Network A local area network (LAN) is a computer network that interconnects computers in a limited area such as a home, school, computer.
Intro to Computer Networks Internet and Networking Terms Bob Bradley The University of Tennessee at Martin.
Postacademic Interuniversity Course in Information Technology – Module C1p1 Contents The 19th century telecommunications –Telegraph - Telephone –Digital.
© 2009 Pearson Education Inc., Upper Saddle River, NJ. All rights reserved.1 Computer Networks and Internets, 5e By Douglas E. Comer Lecture PowerPoints.
© 2006 Pearson Education 1  Obj: 1.2, to understand networks HW: Review sheet  Quiz next class Sections 1.0 – 1.2  Do Now: p.47 #1.4 and 1.5 C1 D3.
1 Internetworking: Concepts, Architecture, and Protocols.
TCOM 509 – Internet Protocols (TCP/IP) Lecture 01 Instructor: Dr. Li-Chuan Chen TA: Waqar Ishaq Date: 08/25/2003.
 Computer Networking Computer Networking  Networking terminology Networking terminology  Client Server Model Client Server Model  Types of Networks.
Week one - networks and Layered Communication Introduction to Networks Layered Communication OSI Model The Physical Layer The Data Link Layer.
1 Client Server Architecture over the Internet Week - 2.
Introduction to Engineering and Technology Concepts Unit Five Chapter Five – Computer and Internet Connections.
Chapter 2: The Internet’s Structure and History IB 300: Advanced Computer Sciences. Professor: Nabil Elmjati.
Summary - Part 1 - Objectives The purpose of this basic IP technology training is to explain video over an IP network. This training describes how video.
Internet and World Wide Web: Amazing Developments Internet- A large collection of computers all over the world that are connected to one another in various.
Networking LAN (Local Area Network)  A network is a collection of computers that communicate with each other through a shared network medium.  LANs.
The Internet By Amal Wali 10DD. Contents  What is the Internet? What is the Internet?  Who owns the Internet? Who owns the Internet?  How do you connect.
© 2007 Pearson Education Inc., Upper Saddle River, NJ. All rights reserved.1 ITGN 235: Principles of Networking ITGN 225: Networking.
Introduction To Internet
Chapter 17 - Internetworking: Concepts, Architecture, and Protocols 1. Internetworking concepts 2. Router 3. protocol for internetworking 4. TCP/ IP layering.
Internet and Intranet RMUTT, Course Outline 1 st half –Internet overview –TCP/IP protocol –Applications in TCP/IP network 2 nd half –JSP programming.
Chapter 1 - Introduction How do Computer Networks and Internet operate? Explosive growth Internet Economic impact Complexity Abstractions and concepts.
An Overview of the Internet: The Internet: Then and Now How the Internet Works Major Features of the Internet.
Spring 2006Computer Networks1 Chapter 2 Network Models.
Review 2 Chapters 7, 8, 9. 2  Define a network and its purpose.  Explain how communications technologies are used in our every day lives.  Understand.
McGraw-Hill©The McGraw-Hill Companies, Inc., 2004 Overview of Data Communications and Networking PART I.
Chapter 17 Internetworking: Concepts, Architecture, and Protocols
Internetworking Concept and Architectural Model Chapter 3.
4 - 1 Copyright © 2006, The McGraw-Hill Companies, Inc. All rights reserved. Computer Software Chapter 4.
Spring 2006Computer Networks1 Chapter 2 Network Models.
1 Internet Technologies CSC Internet Internet is a communication technology. Like telephone it enables people to communicate. Telephones enabled.
Programming technical terms Program is like a recipe. It contains a list of ingredients (called variables) and a list of directions (called statements)
Networks: LANs, WANs and Communication Protocols How do computers communicate?
Communication Networks - Overview CSE 3213 – Fall November 2015.
© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 1 1 Communicating over the Network Network Fundamentals – Chapter 2.
Unit Four Internet 1.Passage One. A Short Introduction.
BASIC NETWORK PROTOCOLS AND THEIR FUNCTIONS Created by: Ghadeer H. Abosaeed June 23,2012.
TCP/IP Protocol Suite 1 Chapter 1 Objectives Upon completion you will be able to: Introduction Understand how the Internet came into being Understand the.
Internet Essentials.
Reading TCP/IP Protocol. Training target: Read the following reading materials and use the reading skills mentioned in the passages above. You may also.
Chapter 1 : Computer Networks. Lecture 2. Computer Networks Classification: 1- Depend on the geographical area. 2- Depend on functional relationship.
TCP/IP & INTERNET Unit 1 Department Of Computer Science & Engineering.
 The Internet is the huge network of computers that links many different types of computers all over the world.  It is a network of networks that shares.
Internet Technology & Network Management Lecture # 01 Information Technology Lucky Sharma Subject Code: IT 603.
© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 1 Communicating over the Network Network Fundamentals – Chapter 2.
3 Early ARPA Networks ARPA used existing connections outside the U.S. to test Internet technology. –Became the first foreign sites to have Internet.
Chapter 19 - Why The Internet Works Well Introduction The Internet Works Well Open System (non-proprietary) IP Provides Flexibility [uses "layered protocol"
Computer Networks and Internets, 5e By Douglas E. Comer
Midterm Reference Points
Chapter 8 – Data switching and routing
Presentation transcript:

Chapter 8 - Internet: The Early Years Many Independent Networks The Proliferation Of LANS Facts About LANs –Engineers have devised many LAN technologies –LAN performance determines cost –high performance LANs are expensive –A particular LAN technology may only work with specific computers. –A LAN technology is chosen for its speed, ease of use, and the availability of interfaces for specific computers. Many large organizations use many LAN technologies.

Chapter 8 - Internet: The Early Years LANs Are Incompatible –Various LAN technologies are completely incompatible. Wide Area Technologies Exist –A WAN differs from a set of disjoint transmission lines because the WAN includes an additional special- purpose computer at each site that connects to the transmission lines and keeps communication independent of the computers that use the WAN. Few WANs, Many LANs WANs And LANs Are Incompatible –Many LAN and WAN technologies exist, and most are incompatible with each other. One cannot produce a usable large network merely by interconnecting the wires from two different networks.

Chapter 8 - Internet: The Early Years The Desirability Of A Single Network The Department Of Defense Had Multiple Networks Connecting Disconnected Machines The Internet Emerges –ARPA funded research to investigate ways to solve the problem of incompatible networks. Both the project and the prototype system that researchers built became known by the name Internet. The ARPANET Backbone Internet Software The Name Is TCP/IP (The TCP/IP Internet Protocol Suite)

Chapter 8 - Internet: The Early Years The Shock Of An Open System –Prevailing opinion suggested that a company selling computer networks could achieve maximum profits by protecting their technology with patents –A network system is closed if a company owns the technology and uses patents and trade secrets to prevent other companies from building products that use it. By contrast, the Internet is an open system because all specifications are publically available and any company can build a compatible technology. Open Systems Are Necessary –A large organization needs an open network system because it acquires computers from multiple vendors; using a closed network system restricts the computers that can connect to the network.

Chapter 8 - Internet: The Early Years TCP/IP Documentation Is Online –For historical reasons, the documents that define TCP/IP and related Internet technology are called Requests for Comments [RFCs] –Because RFCs that documented the technical details of TCP/IP and the Internet project were accessible over the ARPANET, work on the project proceeded more quickly. The Military Adopts TCP/IP

Chapter 8 - Internet: The Early Years Terms –ARPA –backbone network –Internet –open system –RFC –TCP/IP –TCP/IP software –Wide Area Network (WAN)