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History of the internet

History of the internet



History of the internet

History of the internet



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    History of the internet History of the internet Presentation Transcript

    • History of the Internet
    • What is the Internet?• The Internet is the worldwide, publicly accessible network of interconnected computer networks that transmit data by packet switching.• It is a "network of networks“• The largest network in the world that can connect any computer to another computer as long as they both have the internet.
    • Where Did It All Begin?• The World Wide Web began in Geneva, Switzerland – In one of the largest scientific laboratories in the world. • The laboratory was called CERN (Counseil European Pour la Recherche Nucleaire – European Laboratory for Particle Physics)
    • What does WWW stand for?• World Wide Web• The Internet and the World Wide Web are not synonymous: Web is actually something that is available via the Internet – The Internet is a collection of interconnected computer networks – The Web is a collection of interconnected documents, linked by hyperlinks and URLs.
    • What is a Network?• Network - two or more computers that are connected for the purpose of sharing information• LAN – A local area network (LAN) is a computer network covering a small area, like a home, office, or small group of buildings. – Computers that are near each other.• WAN – A wide area network or WAN is a computer network covering a broad geographical area. – The most well-known example of a WAN is the Internet.
    • What is ARPANET?• First network developed in early ’60’s and ’70’s by scientists and military experts• Allowed them to share information and research data over long distances• An experimental network• Beginning of what would become the internet
    • Connecting to the Internet• Modem - A MO-dulator DE-Modulator. – Converts digital information to analog and analog to digital. • Analoglike sound waves • Digitalsignal in 1s and 0s• Types of Modems – Telephone - designed to modulate a data signal over the telephone – DSL - designed to modulate a data signal over the telephone using new technology to increase transmission speed – Cable Modem - designed to modulate a data signal over cable television
    • What is a Browser?• Software which allows you to view information and Web Pages on the WWW• Different browsers can have radically different capabilities and limitations
    • Viewing the Internet• Types of Browsers
    • Navigating the Internet• Search Engine - is a program designed to help find information on the World Wide Web, – They locate and isolate desired information by searching for keywords that the user specifies.• Examples of Search Engines – Google – Yahoo – MSN – Ask Jeeves – Yandex
    • HTTP• HyperText Transfer Protocol – The transmission standard used to send an HTML document across the WWW – Ensures reliable connections between many different computer types – A common set of standards that ensures all computers connected to the Internet will have common ground on which to work
    • What is a domain?• The address of the URL of a particular WEB site• It tells where the address is located i.e. .com; .edu; .gov• The name that is to the right of the last dot in the Internet address• vk.com
    • Some common domains….• .COM – – Commercial• .EDU – – Educational• .NET – – Network• .GOV – – Government• .ORG – – Non-Profit Organizations• .INT – – International• .MIL – – Military
    • Privacy and the Net• There is NO privacy on the Internet. All visits to websites are tracked using cookies and logs• Passwords can help protect your information on the Internet
    • What a Great Time of Life We Live In!!!