COMPUTER SCIENTISTS

Charles Babbage ( First inventor of Computer Engineering )

Charles Babbage (born December 26, 1791 - died October 18, 1871 at age 79 years) was a British mathematician who first proposed the idea of ​​a programmable computer. Some of the machine he developed, but not completed. Now it can be seen at London's Science Museum. In 1991, using Babbage's original plans, a differential engine was developed and this machine works perfectly, which proves that the idea of Babbage's machine can be implemented.
life

Charles Babbage was born in England, most likely on the road No. 44 Crosby Row, Walworth Road, London. There are several opinions about the date of Babbage's birth. Obituary published in The Times mentioning the date of his birth on December 26, 1792. But a few days later a nephew of Babbage wrote that Babbage actually was born a year earlier, in 1791.
The design of machines

At that time, calculations using mathematical tables often have errors. Babbage wanted to develop a way of performing calculations mechanically, so as to reduce the calculation error is often done by humans. At the time, Babbage was inspired by the development of calculating machines carried out by Wilhelm Schickard, Blaise Pascal, and Gottfried Leibniz. The initial idea of Babbage engines are written in the form of a letter he wrote to the Royal Astronomical Society entitled "Note on the application of machinery to the computation of astronomical and mathematical tables" ("notes regarding the application of machinery to the calculation of astronomical and mathematical tables") dated June 14, 1822 .

Ohn Vincent Atanasoff ( Inventor of the First Electronic Computer )

Ohn Vincent Atanasoff (atanasɔf; October 4, 1903 - 15 June 1995) was an American physicist and inventor. Vincent Atanasoff was born in Hamilton, New York but grew up in Brewster, Florida. He was the son of a Bulgarian immigrant who became an electrical engineer, Atanasoff held positions as professor of teaching, a research director of the wartime government and an executive research firm before recognized in the 1970s and 1980s, the electronic digital computer to research conducted at Iowa State College in the late 1930s and the early 1940s. Since childhood, Atanasoff had shown interest in mathematics. Atanasoff studied at the University of Florida to pursue the field of electricity. At age 22, he graduated with a Bachelor of Science. He continued his education master's degree at Iowa State College. Here Atanasoff pursue mathematics and a master's degree at the age of 23 in 1926. Atanasoff went on to doctoral studies in physics examine the ins and outs of helium. Finally in 1930, thesis entitled "The Dielectric Constant of Helium" formal study was completed. His Ph.D. field of theoretical physics at age 27 he obtained from the University of Wisconsin. In 1936, Atanasoff managed to make the analog calculator. This tool is made after studying how the mechanical Monroe calculator and combines it with a tube mengkanibalnya and IBM and analog calculators can work well. Limitations of the mechanical and analog systems makes Atanasoff was thinking of using a digital approach. One is binary math and Boolean logic. It deems fit solutions for the digital computer was designed. On September 1939, Atanasoff received an injection of funds of 650 billion U.S. dollars. In addition, he also received help and mind power of Clifford Berry, one of the students who are equally devoted to going digital solutions. Computers Electronics PertamaAtanasoff and Berry soon realize their dream computer in November 1939. The prototype they made it work. Atanasoff's digital calculating machine named by ABC. Short for Atanasoff-Berry Computer. More than just work, ABC also proved superior to other existing calculating machines at the time. This is demonstrated by being able to solve 29 simultaneous linear equations. It takes less time to get a settlement from the register other than ABC. ABC is not equipped with a CPU (central processing unit), using only the vacuum tube (vacuum tube) to speed up the calculation process. One of the ABC that remain applicable to modern computer memory is the separation of the computation. In December 1940, at a scientific meeting in Philadelphia, Atanasoff met John Mauchly one of the speakers that appear to demonstrate the analog calculator weather data analyzer. In the introduction it Atanasoff told ABC his invention of the printing and invited Mauchly to figure Scientists Inventors - http://www.tokoh-ilmuwan-penemu.com visit in Iowa. After the meeting, together Atanasoff Berry stopped in Washington to visit the patent office. They tried to convince the patent office that is applied to the ABC concept is really the first but both can not be patented ABC. Although ABC has proven to be an alternative solution to replace the calculator, but never had time to perfect it Atanasoff. Call the state who need strength in World War required him to leave Iowa. ABC machine that weighs hundreds of pounds can not be carried into his new job in Washington. Arrangements were entrusted to the ABC patent administrative staff on the campus of Iowa, but apparently it was never implemented by the employee. Mauchly visited Atanasoff increasingly frequent since 1941 and Mauchly had a chance to see ABC and got many ideas from Atanasoff. Atanasoff would like to discuss a variety of things to Mauchly and never hesitated to reveal its brilliant concepts. However, during his visit that Mauchly had never mentions that he's working on a giant computer projects for the U.S. Army ENIAC. Mauchly Atanasoff never mentioned as a source of inspiration despite the fact that Mauchly from Atanasoff to absorb a lot of science. In the end people become more familiar with the ENIAC as the first digital computers rather than ABC. But the pioneering Atanasoff was revealed during the ENIAC patent dispute between Honeywell Inc.. and Sperry Rand who bought the ENIAC patent of Mauchly in 1951 and completed a new problem on October 19, 1973. But ABC still not widely known until Atanasoff died on June 15, 1995. - Leaders Scientists Inventors.

Dr. Douglas C. Engelbart ( Computer Mouse inventor )

Dr. Douglas C. Engelbart (born in Portland, Oregon, January 30, 1925, age 87 years) was a pioneer in the field of computer interface interaction that developed the concept of hypertext and find a mouse or a computer mouse. Mouse (English: the mouse) is a tool used to enter data into a computer other than the keyboard. Mouse or mouse cord getting so named because the panhandle shaped like rats. Engelbart S1 completed a study in the field of electrical engineering at Oregon State University in 1948, the master program of UC Berkeley in 1953, and Ph.D. from UC Berkeley in 1955. During World War II, Douglas joined the U.S. Navy as an electronics technician. Douglas subsequently worked at NASA Ames Research Laboratory in the division. After obtaining his Ph.D., Douglas went on a career as a researcher at Stanford Research Institute, in Douglas is a pioneer institution in the development of various computer components, including mouse or mouse. Mouse that was first created in 1963 by Douglas Engelbart made from wood with a single button. The second model is equipped with three buttons. In 1970, Douglas Engelbart introduced the mouse can find the XY position on the computer screen, mouse is known as the XY Position Indicator (XY position indicator). The most common form of the mouse has two buttons, one each in the upper left and upper right which can be suppressed. However, computer-based Macintosh computers typically use one-button mouse. Mouse works by using motion capture is to touch the ball hard and flat surface. The more modern mouse is not using the ball again, but using an optical beam to detect motion. In addition, some are already using wireless technology, both based radio, infrared, and bluetooth. Currently, the latest technologies are enabling the mouse to use laser system so that the resolution can be up to 2,000 dots per inch (dpi), one can reach even 4800 dots per inch. Usually the mouse model is designed for video game enthusiasts. In 1970 until the 1980s, Douglas became a senior researcher at Tymshare Inc.. In 1989, Douglas founded the Bootstrap Institute, which became the center of the development of computer networking technologies that play a role in the advancement of internet technology. In computing, hypertext is a user interface paradigm for displaying documents containing automatic cross-referencing to other documents called hyperlinks. Selecting a hyperlink causes the computer to display the document connected in a very short time. Inventors Scientists figure - http://www.tokoh-ilmuwan-penemu.com Hyperlink is a reference in a hypertext document to another document or other source. Combined with a network of data and in accordance with the access protocol, a computer may be required to obtain the referenced sources. A document can be made in static or dynamic. Therefore, a hypertext system can be constructed properly handle, use or exceeds many other user interfaces such as menus and command line, and can be used to access both cross-referencing of documents collected by static and interactive applications. Documents and applications are locally or from wherever he is with the help of computer networks like the Internet. The most famous implementation of hypertext is the World Wide Web. The term "hypertext" is often used where the term hypermedia is more suitable when used. World Wide Web - Wera Wanua Waring (English: World Wide Web, abbreviated as WWW) is an information space that is used by global identifiers called Uniform Resource Identifiers to know definitely useful resources. WWW is often considered synonymous with the Internet as a whole, even though he is just a part rather than the Internet.

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