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Tuesday, December 4, 2012

History of Computer Science

From the last decade ,computers and internet(Information Technology ) had made our life fast and comfortable.I am posting some important events to remember the step by step building of modern Technology





1822
Charles Babbage designs his first mechanical computer

1848
Boolean algebra is invented by George Boole

1880
Alexander Graham Bell invents the telephone called the Photophone




1895
Radio signals were invented by Guglielmo Marconi

1923
Television Electronic was invented by  Philo Farnsworth

1924
Electro Mechanical television system was invented by John Logie Baird

1931
Kurt Godel publishes a paper on the use of a universal formal language

1937
Alan Turing develops the concept of a theoretical computing machine

1959
Paul Baran theorises on the "survivability of communication systems under nuclear attack", digital technology and symbiosis between humans and machines

1963
Douglas Engelbart invents and patents the first computer mouse (nicknamed the mouse because the tail came out the end)
The American Standard Code for Information Interchange (ASCII) is developed to standardize data exchange among computers.

1965
Andries van Dam and Ted Nelson coin the term "hypertext"

1971
E-mail was invented by  Ray Tomlinson
Liquid Crystal Display ( LCD ) was invented by  James Fergason


1973 The minicomputer Xerox Alto (1973) was a landmark step in the development of personal computers
Vint Cerf and Bob Kahn develop gateway routing computers to negotiate between the various national networks


1974
IBM develops SEQUEL (Structured English Query Language ) now known as SQL Charles Simonyi coins the term WYSIWYG (What You See Is What You Get) to describe the ability of being able to display a file or document exactly how it is going to be printed or viewed


1975
Altair produces the first portable computer The Microsoft Corporation was founded April 4, 1975 by Bill Gates and Paul Allen to develop and sell BASIC interpreters for the Altair 8800


1976
Apple Computers was founded Steve Wozniak and Steve Jobs

1977
Apple Computer’s Apple II, the first personal computer with color graphics, is demonstrated Ward Christensen writes the programme "MODEM" allowing two microcomputers to exchange files with each other over a phone line


1978
The first magnetic tape is developed in the US

1979
Over half a million computers are in use in the United States.

1980
IBM hires Paul Allen and Bill Gates to create an operating system for a new PC. They buy the rights to a simple operating system manufactured by Seattle Computer Products and use it as a template to develop DOS.

1981
MS-DOS Computer Operating System increases its success

1982 SMTP (Simple Mail Transfer Protocol) is introduced


1983
More than 10 million computers are in use in the United States Domain Name System (DNS) pioneered by Jon Postel, Paul Mockapetris and Craig Partridge. Seven 'top-level' domain names are initially introduced: edu, com, gov, mil, net, org and int.
Microsoft Windows introduced eliminating the need for a user to have to type each command, like MS-DOS, by using a mouse to navigate through drop-down menus, tabs and icons


1984 William Gibson coins the word cyberspace when he publishes Neuromancer


1986
More than 30 million computers are in use in the United States.

1988
Over 45 million PCs are in use in the United States.

1990
The Internet, World Wide Web & Tim Berners-LeeTim Berners-Lee and Robert Cailliau propose a 'hypertext' system starting the modern Internet

1991
The World Wide Web: The World Wide Web is launched to the public on August 6, 1991

1993
At the beginning of the year only 50 World Wide Web servers are known to exist

1994
The World Wide Web Consortium is founded by Tim Berners-Lee to help with the development of common protocols for the evolution of the World Wide Web YAHOO is created in April, 1994.


1995
Java is introduced Amazon.com is founded by Jeff Bezos
EBay is founded by Pierre Omidyar
Hotmail is started by Jack Smith and Sabeer Bhatia.


1996
WebTV is introduced

1997
Altavista introduces its free online translator Babel Fish
Microsoft acquires Hotmail

1998
Google is founded by Sergey Brin and Larry Page on September 7, 1998 PayPal is founded by Peter Thiel and Max Levchin


2001
Bill Gates introduces the Xbox on January 7th 2001.

2002
Approximately 1 billion PCs been sold PayPal is acquired by eBay


2005
September 12: eBay acquires Skype

2006
Skype announces that it has over 100 million registered users.














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