


Study by yourselves
Google began in March 1995 as a research project by Larry Page and Sergey Brin, Ph.D. students at Stanford University. In search of a dissertation theme, Page had been considering—among other things—exploring the mathematical properties of the World Wide Web, understanding its link structure as a huge graph.
Steven Paul "Steve Jobs" ( February 24, 1955 – October 5, 2011) was an American entrepreneur, marketerand inventor,who was the cofounder, chairman, and CEO of Apple Inc. Through Apple, he was widely recognized as a charismatic and design-driven pioneer of the personal computer revolution and for his influential career in the computer and consumer electronics fields, transforming "one industry after another, from computers and smartphones to music and movies.
Microsoft is a multinational computer technology corporation. The history of Microsoft began on April 4, 1975, when it was founded by Bill Gates and Paul Allen in Albuquerque.[1] Its current best-selling products are the Microsoft Windows operating system, Microsoft Office suite of productivity software, Xbox a line of entertainment of games, music and video and Bing, a line of search engines.
YouTube began when three former PayPal employees started to create a video-sharing website on which users could upload, share, and view videos.The Internet domain name "youtube.com" was activated on February 14, 2005.YouTube was founded by Chad Hurley, Steve Chen, and Jawed Karim, who were all early employees of PayPal.
The first substantial computer was the giant ENIAC machine by John W. Mauchly and J. Presper Eckert at the University of Pennsylvania. ENIAC (Electrical Numerical Integrator and Calculator) used a word of 10 decimal digits instead of binary ones like previous automated calculators/computers.













