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Evolution of the InternetEvolution of the Internet

Presented by:Presented by: Usman AkhtarUsman Akhtar Roll no 07-17Roll no 07-17 presented for:presented for: Sir Tasman pashaSir Tasman pasha

TOPIC:TOPIC:EVOLUTION OF THE INTERNET.EVOLUTION OF THE INTERNET.

B.Z university computer science B.Z university computer science Department Multan.Department Multan.

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InternetInternet The largest computer network in the world. Also The largest computer network in the world. Also

called “mother of all networks.”called “mother of all networks.”

Actually a network of networks – a collection of Actually a network of networks – a collection of more than 200,000 individual computer networks.more than 200,000 individual computer networks.

These interconnected networks can communicate These interconnected networks can communicate because they all use the same, standards and because they all use the same, standards and protocols.protocols.

They are connected via high-speed long-distance They are connected via high-speed long-distance backbone networks.backbone networks.

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Evolution of the InternetEvolution of the Internet The Internet was not an overnight development, it has The Internet was not an overnight development, it has

evolved over thirty years.evolved over thirty years. In 1957, the US Department of Defense formed the In 1957, the US Department of Defense formed the

Advanced Research product AgencyAdvanced Research product Agency (ARPA). (ARPA). Whose aim is to exchange information regardless of Whose aim is to exchange information regardless of

their locations for military communications.their locations for military communications. In 1962 In 1962 J.C.R. LickliderJ.C.R. Licklider ideas of a "Galactic ideas of a "Galactic

Network", allowed users to access data and programs Network", allowed users to access data and programs to any site.to any site.

A 1969 US govt. experiment in packet-switched A 1969 US govt. experiment in packet-switched networking.networking.

Packet Switching: Breaks up blocks of text into small, Packet Switching: Breaks up blocks of text into small, fixed bundles of data called packetsfixed bundles of data called packets

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Packet SwitchingPacket SwitchingMessage disassembled

PacketsTransmitted

Message re-assembled

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Evolution of the InternetEvolution of the Internet Lawrence Roberts:Lawrence Roberts: This experiment was the first-ever This experiment was the first-ever

Wide Area Network (WAN)Wide Area Network (WAN), (& than , (& than Local Area NetworkLocal Area Network (LAN (LAN).).

TCP (Transmission Control Protocol)TCP (Transmission Control Protocol): : Converts messages to packets at source and Converts messages to packets at source and reassembles them at destination.reassembles them at destination.

IP: Internet Protocol: IP: Internet Protocol: Handles the addressing, Handles the addressing, ensures packets can be switched across multiple ensures packets can be switched across multiple nodes.nodes.

World Wide WebWorld Wide Web (the Web, WWW, or W3) is an (the Web, WWW, or W3) is an application that uses those transport functions.application that uses those transport functions.

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Evolution of the InternetEvolution of the Internet

At present, 61% of all Americans go online at At present, 61% of all Americans go online at least once in a month.least once in a month.

USA technology reporter Kevin Maney. ”But the USA technology reporter Kevin Maney. ”But the printing press changed everything—religion, printing press changed everything—religion, government, science, global distribution of government, science, global distribution of wealth, & much more. If the internet equals the wealth, & much more. If the internet equals the printing press , no amount of hype could possibly printing press , no amount of hype could possibly overdo it”.overdo it”.

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Soccer Ball Physics