Copyright © 2007 Heathkit Company, Inc. All Rights Reserved PC Fundamentals Presentation 49 – Introduction to the Internet.

Slides:



Advertisements
Similar presentations
Basic Internet Terms Digital Design. Arpanet The first Internet prototype created in 1965 by the Department of Defense.
Advertisements

© 2008 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 Chapter 3: Network Protocols and Communications Introduction to Networks.
1 C H A P T E R © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved1 Definitions Technical terms can scare people.There are certain terms, however,
1 Web Development & Design Foundations with XHTML Chapter 1 Key Concepts.
Internet and the web Summary of terms discusses and review.
Copyright © 2002 Pearson Education, Inc. Slide 3-1 PERTEMUAN 5.
Chapter Extension 7 How the Internet Works © 2008 Prentice Hall, Experiencing MIS, David Kroenke.
Lesson 7 – THE BUSINESS OF NETWORKING. TCP/IP and UDP Other Internet protocols Important Internet protocols OVERVIEW.
Introduction to TCP/IP
Lesson 19 Internet Basics.
Inside of a computer… What happens when you turn your computer on? What loads? Where are applications stored? How are do they run? In what form is information.
Internet Basics مهندس / محمد العنزي
Evolved from ARPANET (Advanced Research Projects Agency of the U.S. Department of Defense) Was the first operational packet-switching network Began.
A global, public network of computer networks. The largest computer network in the world. Computer Network A collection of computing devices connected.
1 Web Developer & Design Foundations with XHTML Chapter 1 Key Concepts.
What Is the Internet? A network of networks, joining many government, university and private computers together and providing an infrastructure for the.
Lesson 2 — The Internet and the World Wide Web
1 Web Developer Foundations: Using XHTML Chapter 1 Key Concepts.
Introducing the Internet Source: Learning to Use the Internet.
Web Mastering Module Internet Fundamentals. What is the Internet? –Global network of networks –Communicating using same set of rules (protocols/languages)
Internet Technology I د. محمد البرواني. Project Number 3 Computer crimes in the cybernet Computer crimes in the cybernet Privacy in the cybernet Privacy.
Chapter 1: Introduction to Web Applications. This chapter gives an overview of the Internet, and where the World Wide Web fits in. It then outlines the.
Copyright © 2002 Pearson Education, Inc. Slide 3-1 CHAPTER 3 Created by, David Zolzer, Northwestern State University—Louisiana The Internet and World Wide.
1 INTERNET AND WORLD WIDE WEB TECHNOLOGIES BUS Abdou Illia, Spring 2007 (Week 11, Thursday 3/22/2007)
Networks – Network Architecture Network architecture is specification of design principles (including data formats and procedures) for creating a network.
Networks QUME 185 Introduction to Computer Applications.
THE INTERNET Chapter 13. Internet- Interconnection and Networks “the Net” Computers have played a significant role in our everyday life Growth in popularity.
CIS 1310 – HTML & CSS 1 Introduction to the Internet.
Internet  Major:Safety science and engineering  Author:jiangqian( 蒋乾 )
1 Web Development & Design Foundations with XHTML Chapter 1 Key Concepts.
1 What is the history of the Internet? ARPANET (Advanced Research Projects Agency Network) TCP/IP (Transmission Control Protocol/Internet Protocol) NSFNET.
Internetworking – What is internetworking? Connect multiple networks of one or more organizations into a large, uniform communication system. The resulting.
An Overview of the Internet: The Internet: Then and Now How the Internet Works Major Features of the Internet.
How Does the Internet Work? Protocols Protocols are rules that describe how computers communicate and exchange data. The Internet has a series of these.
Chapter 2 The Internet and the World Wide Web. 2 Objectives Brief history Internet Access Six Internet Services –Web – –Chat (instant messenger)
Chapter 7: The Internet, Intranets, and Extranets.
CHAPTER 5 TCP/IP PROTOCOLS. P ROTOCOL STANDARDS Protocols are formal rules of behavior When computers communicate, it is necessary to define a set of.
Copyright © 2007 Pearson Education, Inc. Slide 3-1 E-commerce Kenneth C. Laudon Carol Guercio Traver business. technology. society. Third Edition.
The Internet The History and Future of the Internet.
Electronic Commerce and the Internet Chapter 6. Chapter Objectives Describe what the Internet is and how it works Explain packet-switching and TCP/IP.
Network protocols –Nodes of a network must obey some rules if they want to communicate with each other. The set of rules is called network protocol. –The.
Copyright © 2008 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter 1 Fundamentals.
Getting Connected Overview Getting Connected Overview.
© 2003 Prentice Hall, Inc.4-1 Chapter 4 Telecommunications and the Internet Information Systems Today Leonard Jessup & Joseph Valacich.
Unit 1, Lesson 3 Internet History AOIT Computer Networking Copyright © 2008–2013 National Academy Foundation. All rights reserved.
Net 221D:Computer Networks Fundamentals
Oz – Foundations of Electronic Commerce © 2002 Prentice Hall The Internet: Past and Present.
Voice Over Internet Protocol (VoIP) Copyright © 2006 Heathkit Company, Inc. All Rights Reserved Presentation 5 – VoIP and the OSI Model.
Wel come –Prepared by: BHAVIN TANK MILAN VEGAD. What is the.
TCP/IP Protocol Suite ©Richard L. Goldman September 25, 2002.
ULI101 – XHTML Basics (Part I) Internet / Web Concepts Brief History TCP/IP Web Servers / Web Browsers URL HTTP / HTML.
Chapter 6.  Internet and characteristics of Internet.  Various Internet protocols  Static IP addressing and Dynamic IP addressing Prepared by Saher.
Copyright © 2006 Heathkit Company, Inc. All Rights Reserved Introduction to Networking Technologies Introduction to TCP/IP.
A BRIEF HISTORY OF THE INTERNET, WEB, AND HTML. Internet vs. World Wide Web What is The Internet? The Internet is a massive network of networks, a networking.
CIS 1203 Web Technologies Introduction to the Internet and the WWW.
Internet Basics. The Internet: Then and Now The Internet was created by the Advanced Research Projects Agency (ARPA) and the U.S. Department of Defense.
A BRIEF HISTORY OF THE INTERNET, WEB, AND HTML. Internet vs. World Wide Web What is The Internet? The Internet is a massive network of networks, a networking.
Web Development & Design Foundations with XHTML Chapter 1 Key Concepts 1.
Internet.
The Internet & World Wide Web
Level 2 Diploma Unit 10 Setting up an IT Network
Distributed Systems.
Using MIS 2e Chapter 6 Appendix
Inside of a computer… What happens when you turn your computer on? What loads? Where are applications stored? How are do they run? In what form is information.
Web Development & Design Chapter 1, Sections 4, 5 & 6
1 Introduction to the Internet.
Inside of a computer… What happens when you turn your computer on? What loads? Where are applications stored? How are do they run? In what form is information.
TCP/IP Protocol Suite: Review
Unit-3.
Lesson 19 Internet Basics.
Presentation transcript:

Copyright © 2007 Heathkit Company, Inc. All Rights Reserved PC Fundamentals Presentation 49 – Introduction to the Internet

2 Objectives At the end of this presentation, you will be able to:

3 Define TCP/IP and explain its importance to the Internet. Define Internet, Intranet, and Extranet. Define “fully qualified domain name (FQDN)” and URL and define the major parts of each. Recognize top-level domains. Explain how the Domain Name System (DNS) works.

4 The Internet A “Network of Networks”. It consists of tens of thousands of networks and millions of computers all over the world.

5 A Brief History of the Internet Late 1960s – ARPANET - Research in packet-switching networking carried out by the Advanced Research Projects Agency – ARPANET turned over to the U.S. Defense Communication agency – Internet Control and Configuration Board formed – Global Internet begins to emerge as conversion to TCP/IP begins.

6 A Brief History of the Internet 1983 – ARPANET split into ARPANET and MILNET – Defense Department mandates TCP/IP as the protocol of the ARPANET – National Science Foundation funds new backbone called NSFNET, which connects to and greatly expands ARPANET and provides seed money for regional networks. 1980s – Universities and major scientific research institutes get involved.

7 A Brief History of the Internet Late 1980s – Major Corporations tie into the still emerging Internet. Early 1990s – Medium and small companies begin connecting in large numbers. Mid 1990s – Individuals begin connecting en mass. Late 1990s – E-Commerce emerges. Today – The Internet is an integral part of our lives.

8 TCP/IP is: The Protocol of the Internet The number 1 protocol in the world for moving data around A suite of over 100 protocols Supported by virtually all modern operating systems. The protocol of UNIX.

9 TCP/IP- A suite of protocols Internet Protocol (IP) - The protocol that determines the Internet’s basic packet structure and its addressing scheme. Transmission Control Protocol (TCP) - The protocol that sets up a connection between two hosts and ensures that data is passed between them reliably.

10 TCP/IP- A suite of protocols File Transport Protocol (FTP) - Defines file transfers among computers on the Internet. Simple Mail Transport Protocol (SMTP) - Describes the format of Internet . Hypertext Transfer Protocol (HTTP) - Defines how WWW data is transmitted between a server and a browser. Network News Transport Protocol (NNTP) - Defines how Usenet newsgroups and postings are transmitted.

11 IP Address A logical rather than a physical address. How it is entered into your computer: – Manually, by you or the network administrator. – Automatically, via the Dynamic Host Configuration Protocol (DHCP).

12 Each computer on a network that uses the TCP/IP protocol must have its own unique IP address.

13 IP Address Dotted-Decimal Notation

14 Usually, you get your IP addresses from your local Internet Service Provider.

15 Configuring TCP/IP Manually Automatically through DHCP

16 The IP Address is divided into two parts: Network ID (Assigned by InterNIC) Host ID (Assigned locally)

17 Networks using Internet Technology Internet internet Intranet Extranet

18 Network 1 Network 2 Router

19 Network 1 Network 2 Router 1 Network 3 Router 2

20 Network 1 Network 2 Router 1 Network 3 Router 2 Router 3

21 Net5 R Net13 R Net6 R Net7 R Net9 R Net10 R Net1 R Net2 R Net8 R Net11 R Net14 R Net3 R Net4 R Net15 R Net16 R Net12 R

22 Addressing and Identification Schemes MAC Address0A:12:B3:00:F1:3C IP Address Domain Name Uniform Resource Locator (URL)

23 Domain Names An Internet identification system that uses words rather than numeric IP addresses. The Internet uses a system of “Domains” to divide and name its resources. Example:

24 Commercial Ford GE IBM NASA NPS Government HUD MIT ND UNC Education

25 Commercial Ford GE IBM Top-Level Domain Second-Level Domain Domain Names: Ford.com GE.com IBM.com

26 Top-Level Domain Second-Level Domain Domain Names: NASA.gov NPS.gov HUD.gov NASA NPS Government HUD

27 Top-Level Domain Second-Level Domain Domain Names: MIT.edu ND.edu UNC.edu MIT ND UNC Education

28 Commercial yahoo shopping news sports Top-Level Domain 2nd-Level Domain 3rd-Level Domain sports.yahoo.com shopping.yahoo.com Dailynews.yahoo.com

29 Fully Qualified Domain Name (FQDN) Samson.Finance.Mycompany.com Host 3 rd Level Domain 3 rd Level Domain 2nd Level Domain 2nd Level Domain Top Level Domain Top Level Domain

30 Top Level Domains.comCommercial.govGovernment.eduEducation.netNetworks.orgOrganizations.milMilitary.intInternational Country Codes

31 Country Codes.cn China.ca Canada.de Germany.dk Denmark.fr France.hk Honk Kong.ru Russia.se Sweden.uk United Kingdom.us United States

32 Uniform Resource Locator (URL) The Addressing Scheme of the World Wide Web. A user-friendly substitute for an IP Address Example:

33 Protocol Domain Name Domain Name Path File World Wide Web World Wide Web

34 Domain Name System (DNS) A world-wide distributed data base that links Domain Names to IP addresses. A system of hierarchical routing which automatically finds the proper numeric IP address when it is given a Domain Name.

35 DNS Servers

36 Your Workstation DNS Server Hey, DNS Server! What is the IP address of: shopping.yahoo.com ? Hey, DNS Server! What is the IP address of: shopping.yahoo.com ?

37 Your Workstation DNS Server I don’t know. But here is the IP address of the yahoo.com name server She can tell you. I don’t know. But here is the IP address of the yahoo.com name server She can tell you.

38 Your Workstation YAHOO.COM Name Server Hey, Yahoo.com name server! What is the IP address of: shopping.yahoo.com ? Hey, Yahoo.com name server! What is the IP address of: shopping.yahoo.com ?

39 Your Workstation YAHOO.COM Name Server The IP address for shopping.yahoo.com is Have a nice day. The IP address for shopping.yahoo.com is Have a nice day.

40 Your Workstation SHOPPING.YAHOO.COM Web Server

Copyright © 2007 Heathkit Company, Inc. All Rights Reserved PC Fundamentals End