Tuesday, September 18, 2012
Wednesday, August 8, 2012
Personal Computer
The first integrated circuit for
computers was developed in 1958. Only in 1971 was the microprocessor that
contains all the basic elements of a computer on a single chip introduced,
followed by affordable desktop computers in the mid-1970’s Read more
Tuesday, August 7, 2012
Electronic Computer
In the early 1940’s the electronic
computer came into being with the mechanical relays replaced by vacuum tubes.
These were, however, single purpose computer designed to aid in the war effort.
The first general-purpose
electronic computer was ENIAC(Electronic Numeric Integrator and Calculation)
that was put into operation at the University of Pennsylvania in 1946-a 30-ton
machine that contained over 17,000 vacuum tubes and performed 100,000
operations per ..Read more
Forerunners of the Modern Computer
Credit for the concept of the
modern computer goes to the British mathematician Charles Babbage who in the
1830’s designed a steam-powered ‘analytical engine’ that worked with punch
cards. Although Babbage worked for decades at perfecting his design, he never
built the machine.
In the 1880’s, American inventor
Herman Hollerith developed a ‘tabulator’ to manipulate data on punch cards. The
device was used to compile data from the 1890 census in less that two months
compared to the more than seven Read more
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