Introduction to the internet
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Introduction to the Internet. Chapter One. Evolution of the Internet. 1968; U.S. Dept. of Defense; 1980’s ARPANET – Advanced Research Projects Agency Network 1990’s went public. World Wide Web. HTML – Hypertext Markup Language Standard language of the Internet

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Introduction to the Internet

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Introduction to the internet

Introduction to the Internet

Chapter One

Evolution of the internet

Evolution of the Internet

  • 1968; U.S. Dept. of Defense;

  • 1980’s ARPANET – Advanced Research Projects Agency Network

  • 1990’s went public

World wide web

World Wide Web

  • HTML – Hypertext Markup Language Standard language of the Internet

  • Not a network itself but a set of software programs

  • Electronic library

    • Each website like a book

    • Each website has pages; web pages

Transfer protocols

Transfer Protocols

  • HTTP – protocol used to transfer web pages to web servers

  • FTP – used to transfer files between comp., allows file transfer without corruption.

  • SMTP – method of sending e-mail

  • POP – Receives e-mail from an incoming mail server

Domain names dns

Domain Names (DNS)

  • Translates IP addresses into easily recognizable names

    • Example :

      Also called the Dotted Quad because they are divided into 4 sections.

Introduction to the internet


  • Read the name from right to left

    • Example :

DOMAIN CATEGORY Top-level domain



Dns top level domains

DNS – Top Level Domains

  • Com – commercial or company sites

  • Edu – educational institutions

  • Gov – U.S. civilian government

  • Mil – U.S. military

  • Org – clubs, organizations, associations

  • Net – network sites

Country codes others




Au - Australia




Country Codes & Others

Virtual domain names

Virtual Domain Names

  • Provides your company with a private Web address, regardless of where the Web site is hosted.

    • Example:

      • Can be located even if you type www.

Uniform resource locator url

Uniform Resource Locator(URL)

  • Specifies not only the location but also the protocol



Icann icann org


  • Internet Corporation for Assigned Names and Numbers

  • To reach another person on the Internet you have to type an address into your computer -- a name or a number. That address must be unique so computers know where to find each other.

  • ICANN coordinates these unique identifiers across the world. Without that coordination, we wouldn't have one global Internet.

The browser


  • Short for Web browser, a software application used to locate and display Web pages.

    • Internet Explorer

    • Firefox

    • Safari

Search engine


  • A Web site with access to a database of Web sites that a user can search by entering key words.

    • Google, Dogpile, AskJeeves, Yahoo



  • The process of transferring files from one computer to another, usually from a Web server to a browser’s computer.

  • Time of download depends on:

    • The size of the Web page (including text, graphics, etc.)

    • The speed of the user’s Internet connection

    • The speed of the Web server and its connection

    • The amount of Internet traffic competing for use of the Internet

Introduction to the internet

As a Web page designer, you have no control over the user’s connection. You usually cannot change the server’s speed or how much Internet traffic there is.

This leaves the size of your page as the only thing you can really control to affect speed.

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