Eniac

 1946

Not, it is not a wine waiter who chooses a wine bottle but a technician who changes one of the 19000 tubes of the ENIAC!


Two operator cabling a " program " on the ENIAC




Indeed, the ENIAC is not a computer program enregister. It is divided into 30 autonomous unit
(20 accumulators / adders 10 digits, 1 multiplier and 1 " Master To program " able to manage the loops). Program " the ENIAC consist in fact to cable all these unit between they to obtain the result desired .

The programmer of ENIAC have discover thereafter the means to carry out some branch conditional in a program in connect the line of data of a unit towards the line of control of another!



Overall picture of the computer room

Home Page  Home  Prehistory  history  Mini-Computer  Bill gates