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Understanding the Internet: History, Protocols, and the World Wide Web

This article explores the Internet as a global network of interconnected computers, detailing its history from the creation of ARPANET in 1969 to the development of the World Wide Web by Tim Berners-Lee in the late 1990s. It explains the differences between the Internet and the Web, the significance of Internet protocols like TCP/IP, and how data transmission occurs through packet switching. Understanding these concepts is essential for navigating and utilizing the digital landscape of today.

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Understanding the Internet: History, Protocols, and the World Wide Web

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  1. THE INTERNET By Gobetti Andrea & Salvestrini Luca

  2. WHAT IS THE INTERNET? • Network of networks • Allows global access • Super computer & backbones • Messages > tcp/ippackets • «packetsswitching»

  3. INTERNET HISTORY • 1969 Arpanet – fist multiple site computernetwork • Dismantledasmilitary net > universities • Born of the tcp/ip > interconnected networks

  4. THE WWW • Born in late 1990 by Tim Berners Lee working on CERN • Easy to use information system

  5. Differencesbetween www and Internet • Internet: • physical connection • Protocols & languages WWW: A way to access and retreiveinformations over theinternet • Connections: • Internet: cables • WWW: web hypertext link

  6. THE TCP / IP • Suite of protocols • Universal language • Client / Server model

  7. THE TCP PROTOCOL • Divides data into datagrams • Resends datagrams if they gets lost • Checks that everything is well-done • It reassembles the data when it arrives at destination

  8. THE IP PROTOCOL • Puts a littleheadercontaining the IP of the sender and receiver • Sendsdatagrams to theirdestinations

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