Wednesday, 29 February 2012

THE FIRST COMPUTER EVER BUILT

In pictures: Transistor history 
ENIAC computer
Early computers, such as the ENIAC, used vacuum tubes - similar to light bulbs - to do calculations and took several people to operate



Shockley, Bardeen, and
Vacuum tubes were replaced by transistors - a type of electronic switch - invented by William Shockley, John Bardeen and Walter Brattain at Bell Labs.


First transistor
The first working transistor was shown off just before Christmas in 1947, but was only revealed to the public six months later.


Electronics magazine
In 1965 the Intel co-founder Gordon Moore, writing in Electronics magazine, correctly predicted that the number of transistors on a chip would double every year.



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