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Mechanical Device
The calculator was the first invented mechanical device in 1642 by Blaise Pascal. This calculator was created to perform computations that were previously thought to be only human possible.It was able to add and subtract two numbers directly multiply and divide by repetition. -
Electro_Mechanical Device
The ASCC/Mark1 (Automatic Sequence Controlled Calculator) was the first deveoped electro mechanical device devised by Howard H. Aiken, built at IBM and shipped to Harvard University in 1944. It was the first operating machine that could execute long computations automstically. It consisted of a interlocking panel of small gears, counters, switches and control circuits. -
First Generation Computers: The Stored Program Computer
The first generation computer was the ENIAC (electronic numerical integrator and computer) was the first electronic general purpose computer financed by the United States Army, Ordance Corps, Research and Developement Command which was led by Major General Gladeon Marcus Barnes. It was designed to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory. -
The Third Generation: Mainframes
The IBM mainframe 700/700 series was a computer system made by the IBM in the 1950s and early 1960s.The 700s used vacuum tubes,a device controlling electric current through a vacuum in a sealed container. -
The First Generation Computers: The Stored Program Computer
The first generation computer was the SEAC(Standards Eastern Automatic Computer) by the U.S. National Bureau of Stndards. The team that developed SEAC was organized by Samuel Alexander. It was the first computer to do all of its logic with solid-state devices. -
The second genertaion computers : High level programming languages
Fortran was another general-purpose language in the second genertaion. It was developed by the International Business Machines Corporation in the mid-1950s.It is used for programs that benchmark and rank the world's fastest supercomputers. -
second generation computer: high level programming language
The second generation language would include the ALGOL short for Algorithimic Language. This language was the standard method for algorithin description used by the Association For Computing Machinery in textbooks and academic sources for more than thirty years. ALGOL introduced code blocks. -
The second generation computers: High level programming language
The LISP is another computer programming language. LISP was created by John McCarthy. It was created as a practical mathemathical notation for computer programs. Founded in 1958. -
The second generation computers: High Level Programming Languages
COBOL ia the oldest programming language. It was primarily designed by Grace Hopper. It was established in 1959.The name means on Business Oriented Language. -
The Third Generation: Minframes
The IBM System/360 is a mainframecomuter announced by IBM on April 7, 1964 designed to cover the complete range of applications, from small to large, both commercial and scientific. -
The Second Generation Computers; High Level Programming Languages
The language BCPL( Basic Combined Programming Language) is a computer programming language designed by Martin Richards of the Univeristy of Cambridge in 1966. It is no longer around but it intended to write compilers for other lanuages, compilers as a computer program that transforms source code. -
The Third Generation: Mainframes
The IBM System370 was a IBM mainframe announced on June 30, 1970. -
Fourth Generation Computers: The Personal Computer
The Macintosh PC marketed by Apple inc. was developed by Steve Jobs on January 24, 1984. The first massmarket PC had a graphical user interfere and mouse. -
The Fourth Generation: Personal Computer
HP Pavilion is another form of a personal computer produced by Hewlett-Packard founded in 1995. The name is referred to desktops and laptops for the Home and Home Office product range. It was the HP's second multimedia PC designed for home market and it had CD-Rom drive.
