History Of Computers

9941 words, 40 pages

Intro Sample...

Early Start 

Computers have been around for quite a few years.  Some of your parents were probably around in 1951 when the first computer was bought by a business firm.  Computers have changed so rapidly many people cannot keep up with changes.
One newspaper tried to relate how the fast changes in computer technology would look to a similar pace in the auto industry:
"Had the automobile developed at a pace (equal) to that of the computer during the past twenty years, today a Rolls Royce would cost less than $3.00, get 3 million miles to the gallon, deliver enough power to drive (the ship) the Queen Elizabeth II, and six of them would fit on the head of a pin!"

These changes have occurred so rapidly that many people do not know... View More »

Body Sample...

  Hollerith, a young man working for the Bureau built a machine called the Tabulating Machine that read and sorted data from punched cards.  The holes punched in the cards matched each person's answers to questions.  For example, married, single, and divorces were answers on the cards.  The Tabulator read the punched cards as they passed over tiny brushes.  Each time a brush found a hole, it completed an electrical circuit.  This caused special counting dials to increase the data for that answer.

Thanks to Hollerith's machine, instead of taking seven and a half years to count the census information it only took three years, even with 13 million more people since the last census.  Happy with his success, Hollerith formed the Tabulating Machine Company in 1896.  The company later was sold in 1911.  And in 1912 his company became the International Business Machines Corporation, better know today as IBM.
The First Electric Powered Computer 
What is considered to be the first computer was made in 1944 by Harvard's Professor Howard Aiken.  The Mark I computer was very much like the design of Charles Babbage's having mainly mechanical parts, but with some electronic parts.  His machine was designed to be programmed to do many computer jobs.  This all-purpose machine is what we now know as the PC or personal computer. 
The Mark I was the first computer financed by IBM and was about 50 feet long and 8 feet tall.  It used mechanical switches to open and close its electric circuits.  It contained over 500 miles of wire and 750,000 parts.
The First All Electronic Computer 

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