Essay on History of Computers

884 Words Apr 3rd, 2006 4 Pages
History of Computers

Table of Contents

Table of Contents………………….…….2
Abstract…………………………….……3
Body of Research…………………….4 - 6
Conclusion…………………………….…7
Bibliography……………………………..8

Abstract This project explains the history of computers, starting from Howard Aiken's Harvard Mark I to present day time. Although I have not gone over all of the models in my report, I have chosen those which I feel have had the greatest effect on the computer world. I will show how in just forty years, computers have come from complex, slow, room-sized machines, to the small and fast computers of today. These powerful machines are the art of many great men and women, which I will also briefly explain in the project. This project is to show others how
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In 1939 Atanstoff and a graduate student, Clifford Berry started on the project of making an electrical computer. In 1942, when completed, the Atanasoff-Berry Computer (ABC), had input and output, it stored data that could be modified, and it had a memory. In 1973 a historic decision was made by the U.S. District Court, it declared the ABC was the first computing device that was all electric and utilized the binary numbering system, regenerative memory, and digital arithmetic circuitry. These features are still found in modern day computers. In 1951 a machine called the Electronic Discrete Variable Computer, or EDVAC, entered the computer world. This machine was the creation of Von Neumann, Eckert, and Author Burks. EDVAC consisted of 3,500 tubes. The unique feature of EDVAC, was that it was the pioneer for the "stored program concept," which means, that instead of storing the program on paper tape with small holes punched in it, the entire program was stored and run off the computer. Von Neumann then decided to go to Princeton's Institute of Advanced Study (IAS) and help work on their project. The IAS group's attention was on speeding up memory I/O, or then input (I) and output (O) of data to a from memory. The team tried but failed many times before finally deciding to use cathode ray tubes to store memory, which made memory I/O faster. The first computer that allowed real-time control was the Whirlwind. The Whirlwind was designed to

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