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Internet and Intranets Chapter 11 By Stephen Harris.

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1 Internet and Intranets Chapter 11 By Stephen Harris

2 What is the Internet? Made up of many networks. What is a network? –Computers that are connected and can share information. schools homes organizations businesses

3 Types of networks: Wide Area Network (WAN) –Connects computers over a large geographic area, such as a city, county or country. –Usually found on a much smaller area, such as a college campus. Local Area Network (LAN) –Connects individual computers to one another. –Could be a network within a lab or a single building.

4 Example of a LAN 

5 How do I connect to the Internet? You will need a modem. –Modem and phone. –Cable modem. You will need an Internet Service Provider (ISP)

6 Connecting to the Internet 

7 What can I do on the Internet? Electronic mail. Bulletin boards Chatrooms Audio communications. Video communications. Search for information. –Yahoo is a good subject catalog. –Altavista is a search engine.

8 How do I use email? Unique ID –each user on the internet has a unique address. –example: ga_harris@yahoo.com “ga_harris” is the name. “yahoo” is the computer network. “com” is the type of organization.

9 Examples of organization abbreviations?

10 Communicating on the internet. Newsgroups –also called “chat groups” or “conferences” Mailing lists –also called “listservs”

11 World Wide Web Commonly called “the Web” Not separate from the internet. –“rides” on top of it. Information exchanged using protocol. –Hypertext transfer protocol (HTTP)

12 Web Pages Individual pages are grouped together to become a website. Accessed by entering the uniform resource locator (URL) –example: www.tamu-commerce.edu Hypertext Markup Language (HTML)

13 Hypertext Markup Language HTML Set of formatting commands. Requires programs to read. –Examples: Internet Explorer Netscape Software available to create pages. –Example: Microsoft Frontpage

14 What is an Intranet? Internal network for companies or schools. Allows remote access via dialing in to network. Unwanted users controlled via “firewall.”

15 CONFIGURATION OF A NETWORK 

16 A S S U R E MODEL Analyze Learners State Objectives Select Methods, Media, and Materials Utilize Media and Materials Require Learner Participation Evaluate and Revise

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