1 the computer era (B.E. 2497 - 2501.)
during the year B.E. 2497, B.E.2501 is the age of computers that use Vacuum Tubes (Vacuum tube), which is very high-power cooling system even though it may be a good thing, but there will be problems in the heat lamp and the filling and often lackThere is a large computer of this era such as Mark day (MARK 1),E, the C (ENIAC), uniform แวค (UNIVAC).
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