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Welcome to the internet

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Implementation, History and Theory of the Internet

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Welcome to the internet

  1. 1. WELCOME TO THE INTERNET We have packets!
  2. 2. IMPLEMENTATION Duck tape and string and https://www.internetsociety.org/
  3. 3. CLICK ON A LINK!
  4. 4. THE IPTELLS ROUTERSWHERETO GO
  5. 5. DNS – FINDING AN ADDRESS
  6. 6. PACKETS WORK!
  7. 7. HARDWARE – NIC AND CABLE (ORWIFI)
  8. 8. ROUTERS RUNTHE WORLD
  9. 9. HOWYOU CONNECT
  10. 10. THE BACKBONE
  11. 11. WE SEND A REQUEST THE SERVER GIVES A RESPONSE
  12. 12. AND NOW WE HAVE CAT GIFS! HTTPS://WWW.CATGIFPAGE.COM/
  13. 13. HISTORY OF THE INTERNET That glorious series of tubes
  14. 14. PRECURSORS  Electricity  The telegraph  Radio  Television
  15. 15. WHAT IS "THE INTERNET" A worldwide system of interconnected networks and computers and devices.  Network  Computers and Devices  Hypertext and other Data
  16. 16. WHO INVENTEDTHE INTERNET?
  17. 17. WELCOMETO 1958  It's the beginning of the ColdWar  Advanced Research Projects Agency (ARPA) is founded  It's renamed to DARPA in 1972 to confuse us all  The US wanted a system that would withstand first attack and still run  Telephones wouldn't work, they were too centralized  A decentralized system would be able to keep running
  18. 18. THE CONCEPTION  ARPA was trying to get computers to work with, remember this is the age of mainframes  Paul Baran comes up with the idea of Packet Switching in 1960, Davies does it in 1965  BobTaylor wanted to work on the computers at MIT and UC Berkley and Rand and SDC – using one terminal – in 1966
  19. 19. ARPANET IS BORN  Packet Switches was contracted out  BNN delivered a prototype in 8 months  It took a month to get switches hooked up at both Stanford and UCLA  October 29, 1969, at 10:30 - “Talked to SRI host to host.”  no one really notices
  20. 20. THINGS ARE BORN FROM ARPANET  NCP (1969)  Telnet (1969)  Email/SMTP (1971)  TCP/IP (1974 – 1983 flag day)  FTP (1980)  Usenet (1980)  World Wide Web Project (1989)
  21. 21. NCP ANDTELNET
  22. 22. EMAIL
  23. 23. TCP/IP
  24. 24. THE PERSONAL COMPUTER
  25. 25. HTTP
  26. 26. HTML
  27. 27. LYNX < MOSAIC
  28. 28. IETF ANDTHE INTERNET SOCIETY
  29. 29. I LIVEDTHIS
  30. 30. THEORY OF THE INTERNET What are all the pieces?
  31. 31. WHAT ISTHE INTERNET?  Network  Packet Switching  TCP/IP  DNS  Personal Computer  Everybody now has a computer in their pocket  Hypertext  Browsers  HTTP  HTML
  32. 32. PACKET SWITCHING  Packet switching breaks data into chunks, or “packets,” and lets each one take its own path to a destination, where they are re-assembled (rather than sending everything along the same path, as a traditional telephone circuit does).  Proposed independently by Paul Baran in 1960 and Donald Davies in 1965
  33. 33. HOW IT WORKS
  34. 34. ANDTHIS IS WHYYOU USE A CDN
  35. 35. LAYERS OF FUN  IP – forwards packets based on a destination address  TCP – verifies the correct delivery of data from client to server with error and lost data correction  Network Sockets – subroutines that provideTCP/IP (and UDP and some other support) on most systems
  36. 36. ACRONYM MADNESS  The DOD section DARPA built ARPANET which ran onTCP/IP and the protocols are maintained by IETF  TCP -Transmission Control Protocol  IP – Internet Protocol  UDP - User Datagram Protocol
  37. 37. PACKET OF DATA
  38. 38. TCP SAYS HI
  39. 39. UDP SAYS CATCH!
  40. 40. DNS
  41. 41. HTTP Request Response
  42. 42. HTML
  43. 43. THE GLORIOUS FUTURE  NewTransportTechnologies  Refinement and enhancements  New Protocols  Automated Network Management  HTTP/2
  44. 44. CONTACT  auroraeosrose@gmail.com  @auroraeosrose  http://emsmith.net  http://github.com/auroraeosrose  https://www.vanityfair.com/news/2008/0 7/internet200807  Freenode  #phpwomen  #phpmentoring  #php-gtk

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