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Introduction to ICT the computer (view source)
Revision as of 10:55, 3 June 2014
, 10:55, 3 June 2014→History of computers
== '''History of computers''' ==
== '''History of computers''' ==
[[Image:Introduction-Part3_html_m21bc9239.png|left]]<br>[[Image:Introduction-Part3_html_797aeff2.png|right]]<br>
Did you know, the first computer was as big as your classroom! 60 years ago,
computers were very big, costly and used lot of electricity. The
processors of the first computers were made using something called
'vacuum tubes' - which used tubes in which
electrons were moving. Punch cards were an input method. After the
vacuum tubes, came the transistors which could turn electricity in a
circuit 'on' or 'off'. This turning 'on' and 'off' could be used to
instruct computers to do calculations.
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