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LET’S SURF THE INTERNETLET’S SURF THE INTERNET
NOTES
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?
TOPICSTOPICS FATHER OF THE INTERNET DEFINE THE INTERNET HOW WAS IT STARTED HOW DO YOU USE IT WHAT IS ON IT WORLD WIDE WEB
DEFINE INTERNETDEFINE INTERNET
INTRODUCTIONINTRODUCTION THE INTERNET IS A
TELECOMMUNICATIONS SYSTEM OF INFORMATION FROM CORPORATIONS, GOVERNMENT INSTITUTIONS, PRIVATE INDIVIDUALS, UNIVERSITIES, AND SCHOOLS.
MORE SPECIFICALLYMORE 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.
DID YOU KNOW....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??????
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
EARLY PIONEEREARLY PIONEER
VINTON CERF-FATHER OF THE INTERNET
FACTS ABOUT VINTON CERF
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
CERF (CON’T)CERF (CON’T)
HEARING IMPAIRED FROM HIS PREMATURE BIRTH
PRESIDENT OF THE INTERNET SOCIETY
GOVERNMENT’S INVOLVEMENT
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
BASIC INTERNETBASIC INTERNET
VAST RESOURCE OF INFORMATION
FORUM OF COMMUNICATION
A MEDIUM FOR PUBLICATION
WHERE DID IT BEGINWHERE 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
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
HOW LONG HAS IT BEEN HERE
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-
1969-WHAT A YEAR1969-WHAT A YEAR
WOODSTOCK
MAN LANDS ON THE MOON
AND ......THE INTERNET IS BORN
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
BY 1971. . . BY 1981. . .
BY 1971. . . BY 1981. . .
ARPANET INCLUDED 20 SITES
ARPANET INCLUDED 200 SITES
AND THEN THE UNFORSEEN HAPPENED. . . . . BY 1990
AND THEN THE UNFORSEEN HAPPENED. . . . . BY 1990
ARPANET WAS ELIMINATED AND LEFT BEHIND A MASS OF CONNECTIVITY
WORLD WIDE WEBWORLD WIDE WEB
TIM BERNERS-LEETIM BERNERS-LEE GREW UP ON
LONDON 1989 CAME UP
WITH THE WORLD WIDE WEB SOFTWARE AT CERN TECHNOLOGY UNIVERSITY IN SWITZERLAND
48 YEARS OLD
ACCESS TO THE INTERNETHOW DO YOU CONNECT
ACCESS TO THE INTERNETHOW DO YOU CONNECT
YOU NEED:• COMPUTER
• MODEM-TELEPHONE LINE-CABLE, DSL, T1/T3, FIBER, SATELLITE
• COMMUNICATIONS SOFTWARE (BROWSER)
• USER ACCOUNT
COMPUTERCOMPUTER
ANY COMPUTER WILL WORK AS LONG AS IT HAS ENOUGH MEMORY
MODEMMODEM 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
CONNECTIVITYCONNECTIVITY TELEPHONE LINES WHICH ALLOW
FOR VOICE AND DATA T-1 OR T-3 LINES DATA ONLY AND
THEY ARE $$$$$$ BUT FAST DSL LINES-FOR DATA AND FAST NOT
SO $$$$ AS T-1 OR T-3
CONNECTIVITY CONTINUEDCONNECTIVITY CONTINUED
CABLE LINES-DATA ONLY SATELLITE THROUGH DISH
NETWORK $$$$$$$$$$$ FIXED WIRELESS-PERMANENT
STATIONARY LOCATION THAT USES MICROWAVES
C ONNECTIVITY CONTINUED-LAPTOPS
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)
HOTSPOTSHOTSPOTS
200,000 OF THEM GLOBALLY EXPECTED TO CONTINUE TO
INCREASE WHERE ARE T HEY NOW??????
MODEM CONTINUEDMODEM CONTINUED
A MODEM IS A DEVICE THAT CHANGES THE COMPUTER KEYBOARD IMPULSES INTO SOUND WAVES TO TRAVEL THROUGH THE PHONE LINES
MODULATES DEMODULATES THE DATA TO SEND OR RECEIVE
ANALOG TO DIGITAL AND BACK
ANALOG-MEASURES CONTINUOUS FLOWS OF DATA
DIGITAL-SHOWS JUST A RESULT
SOFTWARESOFTWARE
YOU NEED A COMMUNICATIONS SOFTWARE TO MAKE THE COMPUTER AND MODEM “COMMUNICATE” WITH A SERVER SOMEWHERE
FILE TRANSFER PROTOCOLFILE TRANSFER PROTOCOL
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
TCP/IPTCP/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
IP ADDRESSESIP ADDRESSES
EACH TIMEYOU CONNECT TO THE INTERNET THROUGH YOUR ISP (INTERNET SERVICE PROVIDER) THE ISP KEEPS A LOG OF YOUR WEB TRAVELS
Web BrowsersWeb Browsers
Internet Explorer-Microsoft Firefox-Mozilla
We will do a separate slide show on Search Engines
`̀
WHAT IS OUT THEREWHAT IS OUT THERE ??????
WWWWWW
BROWSERS ON THE INTERNET SEARCH TOOLS USES SEARCH ENGINES MOST POPULAR IS???? WHAT ARE SOME OTHERS YOU
LIKE TO USE?
DOMAIN ID EXTENSIONSDOMAIN 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
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
YOUTUBE HAS OVER 100 MILLION HITS PER DAY
YOUTUBE HAS OVER 100 MILLION HITS PER DAY
MYSPACE IS SECOND
(REMEMBER-MYSPACE IS OFF LIMITS HERE AT RCHS)
GOOGLE HAS 200 MILLION HITS PER DAY
GOOGLE HAS 200 MILLION HITS PER DAY
RESOURCES:RESOURCES:
http://news.netcraft.com/ http://www.internetworldstats.com/
stats.htm
YAHOOYAHOO DAVID FILO
JERRY YANG
CO-FOUNDERS OF YAHOO
YAHOOYAHOOYAHOOYAHOO 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
WHO HAS A HOMEPAGE ON THE WEB???
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
UNIFORM RESOURCE LOCATOR
UNIFORM RESOURCE LOCATOR
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
HOW DO WE CONNECT HERE AT SCHOOL?
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
OUR CURRENT HOOKUPOUR 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
HOOK UPHOOK UP
WE ARE ABLE TO ACCESS THE WEB VIA YOUR STUDENT WORKSTATION
THERE ARE NO MODEMS
PUBLISHINGPUBLISHING
BLOGS IMAGES WEBSITES FOR POSTING RESUMES
E-MAILE-MAILWE WILL NOT HAVE E-MAIL ACCOUNTS HERE AT SCHOOL
YOU MAY NOT USE HOT MAIL OR POP MAIL OR E-MAIL
EMAILEMAIL
RAY TOMLINSON DEVELOPED THE FIRST EMAIL PROGRAM in 1971
SO. . .WHAT’S THE BIG DEALSO. . .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