>>0 1 2 3 4 Introduction To The Internet Mr. Garel St. BACHS.
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Transcript of >>0 1 2 3 4 Introduction To The Internet Mr. Garel St. BACHS.
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Overview of Slideshow
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History of the Internet
What the internet offers
Getting Connected
URL’s, Hyperlinks & Browsers
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History of the Internet
• Late 1960’s, US Defense Dept. begins theinternet as a military project.
• Government creates a network towithstand a nuclear attack across a largearea
• Network quickly grew to includeresearchers and scientists across thecountry and eventually the world
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Structure of the Internet
• Consists of thousands of connectednetworks around the world
• Connected to share information
• Common uses include:– Electronic Mail (e-mail) and discussion groups
– Online shopping
– Information, Education & Entertainment
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Connecting to the Internet
The most common methods of connecting tothe internet are:
1. Modem: Connecting through a phoneline. Usually at 56 kilo bytes per second(Kbps)
2. ISDN: Integrated service digital networkis like a digital phone line offered bytelephone companies.
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Connecting to the Internet Cont.
3. Cable Modem: Offered by cablecompanies, this method connects to theinternet using the same cable thatattaches to a television set. Speeds of upto 3000 kbps
4. DSL: Digital Subscriber Line is a serviceoffered by telephone companies atspeeds from 1,000 to 6,000 kbps.
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Introduction to the Web
• The world wide web, known as the web, ispart of the internet
• Each page on the internet has a uniqueaddress called a URL (Uniform ResourceLocator)
• Web page is a document on the web(could include text, images, sounds, video)
• A web site is a collection of web pages
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Surfing the Web
• Web pages contain Hyperlinks (links): Textor images that connect to other pages onthe web.
• Web browsers are software programs thatallow you to view and explore the web.Ex: Microsoft Internet Explorer, NetscapeNavigator and Mozilla.
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Applying our Knowledge!
• 1.9 Computer Networks & the internet
• 1.10 Effective search techniques; Booleansearches
• 1.11 Email tips and tricks
• 1.12 Criteria for evaluating websites
• 1.13 Selecting Internet Service ProvidersISP's and connecting to the Internet
• 1.14 Electronic Works Citation