1 / 30

ORIGINS of the Information Highway: the evolution of a new mass medium

ORIGINS of the Information Highway: the evolution of a new mass medium. Charles Babbage. “Father of Computing”. Cambridge, UK – mathematician and inventor. Made detailed plans in 1800s – for calculating math tables. logical structure of the modern computer. Babbage’s Analytical Engine.

eshe
Télécharger la présentation

ORIGINS of the Information Highway: the evolution of a new mass medium

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ORIGINS of the Information Highway:the evolution of a new mass medium

  2. Charles Babbage • “Father of Computing” • Cambridge, UK – mathematician and inventor • Made detailed plans in 1800s – for calculating math tables. • logical structure of the modern computer

  3. Babbage’s Analytical Engine • Powerful punch-card controlled general purpose calculator • Babbage’s idea never got past the prototype stage; full functioning engine never built

  4. “As We May Think” • Article in The Atlantic Monthly, July 1945 • Authored by Vannebar Bush, electrical engineer at MIT and U.S. advisor during World War II • Introduced concept of a “memex,” a device that would allow a user to connect different pieces of associated information

  5. ENIAC • Built in 1946 at the University of Pennsylvania • First large-scale electronic computer • Had 17,468 electronic vacuum tubes • 5,000 additions per second; today’s microprocessor can do 100 million additions per second

  6. Sputnik 1957

  7. The Cold War and computing • 1958: Advanced Research Projects Agency (ARPA) created under the auspices of the Department of Defense. • ARPA would become the home of ARPAnet, a network of computers funded by the military and designed to allow communication in the event of a nuclear attack.

  8. ARPAnet established • 1969: First four nodes, or points of access, to the forerunner of the Internet are established (UCLA, UC Santa Barbara, Stanford, University of Utah). Doug Engelbart Stanford Node Vint Cerf UCLA Node

  9. Ted Nelson 1965: Introduces the principle of hypertext, associating information through “links” into a coherent organization. back

  10. Vinton G. Cerf • “Father of the Internet” • Helped develop TCP/IP protocol in 1970s

  11. Transmission research • 1967: Plan for packet switching presented at technology conference

  12. The minicomputer • 1975: Release of Altair 8800 • Yours for the low price of $397 • Users had to not only assemble the Altair themselves, but write software for it also.

  13. Along comes Microsoft • 1975: Two young software developers – Bill Gates and Paul Allen write and market a software program for the Altair. • Their version of the BASIC language program for the Altair was a success, and Microsoft Corporation was born.

  14. Birth of the Apple 1977: Steve Jobs and Steve Wozniak launch the Apple II, which featured built-in programming, color graphics, and increased memory capacity compared to the Altair. • The Apple II was an almost immediate success, and is credited with being a ground-breaking model for home computers.

  15. Home computing 1981: IBM launched a personal computer model featuring microprocessor chips from Intel, and MS-DOS operating system from Microsoft. • 1984: Apple introduces the Macintosh during the third quarter of the Super Bowl, with a 45-second commercial.

  16. Tim Berners-Lee 1989: Founds the World Wide Web initiative for his own use as a researcher at CERN (European Organization for Nuclear Research) – drawing from Bush • 1991: Specified the Hypertext Markup Language (HTML) • Also developed URLs (uniform resource locators) and HTTP (hypertext transfer protocol)

  17. Birth of the browser 1993: Marc Andreessen, an undergraduate student at the University of Illinois, helped create the path-breaking browser Mosaic. • 1994: Andreessen co-founded a company, now named Netscape Communications Corporation, with James H. Clark, founder of Silicon Graphics Inc.

  18. Sitepal

  19. Stage 1:Novelty or Developmental Stage Rationale Computer network impervious to attack DOD - ironically, no central authority Technology Digital Communication Packet Switching Microprocessors E-mail and bulletin boards

  20. Digital communication

  21. Packet switching

  22. Microprocessor

  23. Stage 2:Entrepreneurial Develop. 1982: National Science Foundation network Rapid spread beyond government and academic worlds Other technological developments Fiber optic cable

  24. Stage 3:Commercialization of Internet as a mass medium WWW – 1991 and graphic browsers (Mosaic 1993) (Netscape 1994) 1993: multimedia capability on Net Graphics, audio, video, streaming Rapid growth rate Companies seek to turn Net users into consumers through ads and Web sites E-commerce

  25. MAPPING THE INTERNET:four major mapping systems COMMERICAL ISPs WORLD WIDE WEB BROWSERS WEB SEARCH ENGINES and DIRECTORIES Google

  26. OWNERSHIP ISSUES ON THE INTERNET Increasing convergence of owners and players in mass media industries

  27. Players and companies jockeying for position Media mega-corporations Computer hardware/software companies Internet access and service providers Phone and cable TV companies Internet search engines, portals, and Web browsers TV networks

  28. Promises for democracy Wide accessibility for all citizens Decentralized social network Development from “bottom-up” rather than “top-down” Major involvement of amateurs Massive sharing and storage of useful information

  29. Disadvantages Increased circulation of “cyberspace litter” (hoaxes, spam, chain e-mails) Rooneyremarks Lack of editorial control for accuracy --> proliferation of misinformation Concerns about security, child protection, hatemongering Knowledge gap between users and those without access (stats)

More Related