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The Computer Age Turns 75
In February 1946, the first general-purpose electronic computer, the ENIA, was introduced to the public. Nothing like ENIAC had been seen before, and the unveiling of the computer, a room-filling machine with lots of flashing lights and switches–made quite an impact.
ENIAC (the Electronic Numerical Integrator and Computer) was created primarily to help with the trajectory-calculation problems for artillery shells and bombs, a problem that was requiring increasing numbers of people for manual computations. John Mauchly, a physics professor attending a summer session at the University of Pennsylvania, and J Presper Eckert, a 24-year-old grad student, proposed the machine after observing the work of the women (including Mauchly’s wife Mary) who had been hired to assist the Army with these calculations. The proposal made its way to the Army’s liason with Penn, and that officer, Lieutenant Herman Goldstine, took up the project’s cause. (Goldstine apparently heard about the proposal not via formal university channels but via a mutual friend, which is an interesting point in our present era of remote work.) Electronics had not previously been used for digital computing, and a lot of authorities thought an electromechanical machine would be a better and safer bet.