A computer is a programmable machine which is based on a microprocessor, that receives input, stores, manipulates data, and provides output in a useful format. In 1833 the concept of modern computers was first outlined and in 1946 the modern computers were outlined. The first computer ever made was in the mid 20th century, they were very huge, the size of a full room, that consumed so much power as several 100 computers working together.
The first computer the depended on binary numbers was created in 1939-1942 by John and Atanasoff. Charles Babbage is a really important person in the history of computers because he is the fisrt person who designed a full program. In Babbage's time, numerical numbers was commonly calculated by humans untill John and atanasoff creation.
In Wold War II, two research projects affected the history of computers: fast ballistics calculators and create ballistics tables. Electronic numerical integrators and computers were designed for many specific reasons. In 1970's, Steve Wazniak and Bill Fernandez created the cream soda computers that lead the revolution and development of smaller computers. In 1980's computers started to improve, They became faster because of the new technology that affected the world after world war two. In the 1980's and 1990's , the computer was used in the development of educational softwares which lead to more use of multimedia on computers.
Computers are commonly used in MP3 players, cell phones, opening internet, watching films, texting messages and sending e-mails. Computers are used for military jobs and storing confidential information. Another kind of computer known as the analog computer, which is a form of computer that uses the continuously-changeable aspects of physical phenomena such as electrical, mechanical or hydraulic quantities to model the problem being solved, and this is useful in a petroleum companies. There is also another type of program used in pertoleum companies, such as digital computers. Digital computers are computers that represents numbers and data using discrete internal states, in contrast to continously varying quantities used in an analog computer.
John Yahya. "Open Directory - Computers." ODP - Open Directory Project. Dmoz, 17 Nov. 2011. Web. 19 Jan. 2012. <http://www.dmoz.org/computers>.
Micheal. "History of Computers." Hitmill.com - Internet Training and Technology for Students. Hitmill, 17 Nov. 2011. Web. 19 Jan. 2012. <http://www.hitmill.com/computers/computerhx1.html>.