Internet ppt 2009

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Internet and www.

Internet and www.

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  • 1. LET’S SURF THE INTERNET NOTES
  • 2.
    • BILL GATES WAS QUOTED AS SAYING THERE ARE ONLY TWO KINDS OF BUSINESSES:
    • THOSE WHO HAVE A WEB SITE AND THOSE WHO USED TO BE IN BUSINESS
    • WHAT DOES THIS MEAN?
  • 3. TOPICS
    • FATHER OF THE INTERNET
    • DEFINE THE INTERNET
    • HOW WAS IT STARTED
    • HOW DO YOU USE IT
    • WHAT IS ON IT
    • WORLD WIDE WEB
  • 4. DEFINE INTERNET
  • 5. INTRODUCTION
    • THE INTERNET IS A TELECOMMUNICATIONS SYSTEM OF INFORMATION FROM CORPORATIONS, GOVERNMENT INSTITUTIONS, PRIVATE INDIVIDUALS, UNIVERSITIES, AND SCHOOLS.
  • 6. MORE SPECIFICALLY
    • THE INTERNET IS AN INTERCONNECTED NETWORK OF NETWORKS AND EACH “HOST” ( ANY COMPUTER DIRECTLY CONNECTED TO THE INTERNET) HAS A NUMBER OF OTHER COMPUTERS CONNECTED TO IT.
  • 7. DID YOU KNOW....
    • THE DEVELOPMENT OF THE RADIO TOOK 38 YEARS TO FINALLY REACH 50 MILLION USERS
    • TELEVISION TOOK 13 YEARS SINCE ITS DEVELOPMENT TO REACH 50 MILLION USERS
    • THE WORLD WIDE WEB TOOK 4 YEARS TO REACH 50 MILLION USERS
    • THE WEB IS FOSTERING ISOLATION AMONG HUMANS- why??????
  • 8.
    • 80% OF WEB SITES ARE IN ENGLISH AND IT IS ONLY INCREASING
    • 10% OF THE WORLD SPEAKS ENGLISH
    • 10 MILLION TRANSATLANTIC “CONVERSATIONS” OCCURING AT ONE TIME OVER THE INTERNET TODAY
    • IN 1956 THERE WERE ONLY 36 PHONE CONVERSATIONS TAKING PLACE OVER TRANSATLANTIC CABLES
  • 9. EARLY PIONEER VINTON CERF-FATHER OF THE INTERNET
  • 10. FACTS ABOUT VINTON CERF
    • BORN IN 1943
    • WROTE THE INTERNET PROTOCOL
      • SOFTWARE FOR THE INTERNET
    • ELECTRICAL ENGINEER PROFESSOR AT STANFORD (BEFORE)
    • WORKING ON THE INTERPLANETARY INTERNET
  • 11. CERF (CON’T)
    • HEARING IMPAIRED FROM HIS PREMATURE BIRTH
    • PRESIDENT OF THE INTERNET SOCIETY
  • 12. GOVERNMENT’S INVOLVEMENT
    • CONGRESS AND SENATE ARE DEBATING WHETHER THEY SHOULD GET INVOLVED IN OVERSEEING THE INTERNET
    • SOME PEOPLE ARE AFRAID THERE IS TOO MUCH PORNOGRAPHY ON THE NET
    • SOME PEOPLE FEEL THE INTERNET USERS ARE DOING A GOOD JOB
  • 13. BASIC INTERNET
    • VAST RESOURCE OF INFORMATION
    • FORUM OF COMMUNICATION
    • A MEDIUM FOR PUBLICATION
  • 14. WHERE DID IT BEGIN
    • The first recorded description of the social interactions that could be enabled through networking was a series of memos written by J.C.R. Licklider of MIT in August 1962 discussing his "Galactic Network" concept
    • He envisioned a globally interconnected set of computers through which everyone could quickly access data and programs from any site
  • 15.
    • In spirit, the concept was very much like the Internet of today. Licklider was the first head of the computer research program at DARPA, starting in October 1962
    • While at DARPA he convinced his successors at DARPA, Ivan Sutherland, Bob Taylor, and MIT researcher Lawrence G. Roberts, of the importance of this networking concept
  • 16. HOW LONG HAS IT BEEN HERE
    • BEEN AROUND ABOUT 40 YEARS-1960’s
    • ABOUT 40 MILLION USERS AT ANY ONE TIME AND THAT NUMBER IS GROWING
    • IT STARTED AT THE PENTAGON-
  • 17. 1969-WHAT A YEAR
    • WOODSTOCK
  • 18.
    • MAN LANDS ON THE MOON
  • 19. AND ......THE INTERNET IS BORN
    • ORIGINALLY CALLED ARPANET
    • FIRST USED BY THE DEPARTMENT OF DEFENSE, UC-BERKLEY AND STANFORD
    • THERE WAS NO HOOPLA TO COMMERATE THIS HISTORICAL DAY-NOT EVEN PICTURES
  • 20. BY 1971. . . BY 1981. . .
    • ARPANET INCLUDED 20 SITES
    • ARPANET INCLUDED 200 SITES
  • 21. AND THEN THE UNFORSEEN HAPPENED. . . . . BY 1990
    • ARPANET WAS ELIMINATED AND LEFT BEHIND A MASS OF CONNECTIVITY
  • 22. WORLD WIDE WEB
  • 23. TIM BERNERS-LEE
    • GREW UP ON LONDON
    • 1989 CAME UP WITH THE WORLD WIDE WEB SOFTWARE AT CERN TECHNOLOGY UNIVERSITY IN SWITZERLAND
    • 48 YEARS OLD
  • 24. ACCESS TO THE INTERNET HOW DO YOU CONNECT
    • YOU NEED:
      • COMPUTER
      • MODEM-TELEPHONE LINE-CABLE, DSL, T1/T3, FIBER, SATELLITE
      • COMMUNICATIONS SOFTWARE (BROWSER)
      • USER ACCOUNT
  • 25. COMPUTER
    • ANY COMPUTER WILL WORK AS LONG AS IT HAS ENOUGH MEMORY
  • 26. MODEM
    • INTERNAL MODEM -INSIDE YOUR COMPUTER
    • EXTERNAL -SEPARATE PIECE OF HARDWARE-NOT USED MUCH NOW
    • 28.8 WILL BE AROUND FOR AWHILE BECAUSE OF TELEPHONE LINE LIMITS
  • 27. CONNECTIVITY
    • TELEPHONE LINES WHICH ALLOW FOR VOICE AND DATA
    • T-1 OR T-3 LINES DATA ONLY AND THEY ARE $$$$$$ BUT FAST
    • DSL LINES-FOR DATA AND FAST NOT SO $$$$ AS T-1 OR T-3
  • 28. CONNECTIVITY CONTINUED
    • CABLE LINES-DATA ONLY
    • SATELLITE THROUGH DISH NETWORK $$$$$$$$$$$
    • FIXED WIRELESS-PERMANENT STATIONARY LOCATION THAT USES MICROWAVES
  • 29. C ONNECTIVITY CONTINUED-LAPTOPS
    • WIFI-SHORT FOR WIRELESS FIDELITY-USES RADIO WAVES TO ALLOW A COMPUTER TO COMMUNICATE WITH OTHER COMPUTERS ON THE INTERNET
    • NEED “HOT SPOTS”-LOCATION IN WHICH A WIRELESS ACCESS POINT PROVIDES PUBLIC INTERNET ACCESS
    • ACCESS POINT-SIMILAR TO AN ANTENNA (100 FOOT RANGE)
  • 30. HOTSPOTS
    • 200,000 OF THEM GLOBALLY
    • EXPECTED TO CONTINUE TO INCREASE
    • WHERE ARE T HEY NOW??????
  • 31. MODEM CONTINUED
    • A MODEM IS A DEVICE THAT CHANGES THE COMPUTER KEYBOARD IMPULSES INTO SOUND WAVES TO TRAVEL THROUGH THE PHONE LINES
    • MO DULATES DEM ODULATES THE DATA TO SEND OR RECEIVE
    • ANALOG TO DIGITAL AND BACK
  • 32.
    • ANALOG-MEASURES CONTINUOUS FLOWS OF DATA
    • DIGITAL-SHOWS JUST A RESULT
  • 33. SOFTWARE
    • YOU NEED A COMMUNICATIONS SOFTWARE TO MAKE THE COMPUTER AND MODEM “COMMUNICATE” WITH A SERVER SOMEWHERE
  • 34. F ILE T RANSFER P ROTOCOL
    • A SET OF COMMUNICATION THAT PROVIDES FOR ERROR-FRRULESEE TRANSFER OF FILES ACROSS A COMPUTER TO COMPUTER LINK
    • USED A LOT WITH WEB PAGES~ WHEN YOU NEED TO COPY A FILE INTO A WEB PAGE
  • 35. TCP/IP
    • TRANSMISSION CONTROL/PROTOCOL/INTERNET PROTOCOL
    • DEVELOPED BY VINTON CERF (FATHER OF THE INTERNET)
    • IT MAKES IT POSSIBLE FOR DIFFERENT TYPES OF COMPUTERS USING DIFFERENT OPERATING SYSTEMS TO COMMUNICATE WITH EACH OTHER
  • 36. IP ADDRESSES
    • EACH TIMEYOU CONNECT TO THE INTERNET THROUGH YOUR ISP (INTERNET SERVICE PROVIDER) THE ISP KEEPS A LOG OF YOUR WEB TRAVELS
  • 37. Web Browsers
    • Internet Explorer-Microsoft
    • Firefox-Mozilla
    • We will do a separate slide show on Search Engines
  • 38. `
  • 39.  
  • 40.  
  • 41. WHAT IS OUT THERE
    • ??????
  • 42. WWW
    • BROWSERS ON THE INTERNET
    • SEARCH TOOLS
    • USES SEARCH ENGINES
    • MOST POPULAR IS????
    • WHAT ARE SOME OTHERS YOU LIKE TO USE?
  • 43.  
  • 44. DOMAIN ID EXTENSIONS
    • COM
    • EDU
    • FIRM
    • GOV
    • INFO
    • INT
    • MIL
    • NET
    • NOM
    • ORG
    • REC
    • STORE
    • WEB
    • COMMERCIAL
    • EDUCATION
    • BUSINESS
    • GOVERNMENT
    • INFORMATION
    • INTERNATIONAL
    • MILITARY
    • NETWORK RESOURCES
    • PERSNAL NOMENCLATURE
    • ORGANIZATIONS
    • RECREATIONAL
    • RETAILERS
    • BUSINESSES RELATED TO THE WEB
  • 45.
    • There were just 18,000 Web sites when Netcraft, based in Bath, England, began keeping track in August of 1995. It took until May of 2004 to reach the 50 million milestone; then only 30 more months to hit 100 million, late in the month of October 2006
  • 46.  
  • 47. YOUTUBE HAS OVER 100 MILLION HITS PER DAY MYSPACE IS SECOND (REMEMBER-MYSPACE IS OFF LIMITS HERE AT RCHS)
  • 48. GOOGLE HAS 200 MILLION HITS PER DAY
  • 49. RESOURCES:
    • http://news.netcraft.com/
    • http://www.internetworldstats.com/stats.htm
  • 50. YAHOO DAVID FILO JERRY YANG CO-FOUNDERS OF YAHOO
  • 51. YAHOO
    • EACH IS WORTH $6 BILLION
    • ON-LINE DIRECTORY OF 30 MILLION PAGES
    • STANFORD UNIVERSITY GRAD STUDENTS
    • IN 1994 IT RECEIVED 170,000 HITS PER DAY AND NOW IT GETS 7 MILLION HITS PER DAY
  • 52. WHO HAS A HOMEPAGE ON THE WEB???
    • 1 YEAR AGO ONLY HALF OF THE FORTUNE 1000 COMPANIES DID- WHAT ARE FORTUNE 1000
    • NOW ~ THEY ALL DO
    • MOST COMPANIES
    • TV NETWORKS
    • RADIO STATIONS
    • INDIVIUAL PEOPLE AND SCHOOLS
  • 53. U NIFORM R ESOURCE L OCATOR
    • HTTP://WWW.YAHOO.COM
    • homepages
    • HTTP-SPECIAL SOFTWARE TOOL FOR CREATING HOMEPAGES ON THE WEB ~MS FRONTPAGE
    • WHO HAS A HOME PAGE ON THE WEB????ANYONE THAT HAS A WEB SERVER TO DO IT OR ACCESS
  • 54. HOW DO WE CONNECT HERE AT SCHOOL?
    • WE WILL USE A DIRECT ACCESS PROVIDED BY THE AMERITECH GRANT TO SCHOOLS
    • WE HAVE FIBER LINES
    • YOU WILL DO SPECIFIC SEARCHES
    • YOU CANNOT USE THE WEB FOR JUST PLAYING OR FOR CHAT OR E-MAIL OR YOU GET A PINK SLIP
  • 55. OUR CURRENT HOOKUP
    • WE CONNECT THE FILE SERVER THROUGH A SWITCH
    • THE SWITCH IS CONNECTED TO A BUIDLING IN WAYNE, MICHIGAN CALLED RESA
    • RESA IS CONNECTED TO MERIT IN ANN ARBOR USING A T3 LINE
    • COSTS $250 PER MONTH
  • 56. HOOK UP
    • WE ARE ABLE TO ACCESS THE WEB VIA YOUR STUDENT WORKSTATION
    • THERE ARE NO MODEMS
  • 57. PUBLISHING
    • BLOGS
    • IMAGES
    • WEBSITES FOR POSTING RESUMES
  • 58. E-MAIL
    • WE WILL NOT HAVE E-MAIL ACCOUNTS HERE AT SCHOOL
    • YOU MAY NOT USE HOT MAIL OR POP MAIL OR E-MAIL
  • 59. EMAIL
    • RAY TOMLINSON DEVELOPED THE FIRST EMAIL PROGRAM in 1971
  • 60. SO. . .WHAT’S THE BIG DEAL
    • THE INTERNET/WEB IS ANOTHER MEANS OF COMMUNICATING AND GATHERING DATA
    • IT IS FAST
    • IT IS THOROUGH
    • IT IS CHEAP
    • IT IS ADDICTING
    • IT IS GLOBAL
  • 61. THE END