internet ppt 2009

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