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The Internet and the World Wide Web
Chapter 12
© 2009, The McGraw-Hill Companies, Inc. All rights reserved.
CHAPTER OUTLINE
• A Brief History of the Computer • The Internet
• Structure And Features of the Internet • The Evolving Internet
• Economics • Feedback
• Social Implications
• The Future: The Evernet
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A BRIEF HISTORY OF THE COMPUTER
• Earliest computers were basically adding machines
– Pascal’s arithematique
– Babbage & Byron’s analytical engine – Hollerith’s punch cards
– Aiken’s Mark I
• Transistors, integrated circuits (1950s) – Personal computers (1970s)
• Modem
• Local Area Networks (LAN)
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THE INTERNET
• The Internet is a network of computer networks
• No one owns or run the Internet • There is no “Internet company”
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From ARPANET to Internet (1 of 2)
• Cold War idea: keep vital computer networks connected
– Decentralized
– Information bundled in Internet Protocol packets
– ARPANET (Advanced Research projects Agency Network)
• 1980s NSF (National Science Foundation) – More widespread network
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