Questions tagged [eniac]

For questions regarding the ENIAC (Electronic Numerical Integrator and Computer) machine created in 1946.

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17
votes
5answers
805 views

Did any computers use automatically-operated mechanical storage as electronically-read-addressable memory

From what I understand of ENIAC, it had a very large number of manually-operated rotary switches which behaved as ROM. While programming ENIAC in the early days required a plugboard, the machine was ...
4
votes
2answers
269 views

How many 6SN7 tubes did it take to store a bit?

One of the most important components of a computer is a circuit called a flip-flop, which has two stable states (that it can flip-flop between, hence the name); it is used for temporary storage of a ...
23
votes
4answers
4k views

What accounted for the cost of ENIAC?

I'm used to the fact that first-generation computers were very expensive, which I had always assumed was because they contained large numbers of vacuum tubes, each of which is a rather complex, high ...
5
votes
1answer
196 views

When was term "word" first used as reference to CPU max register size

I've tried to find information when term 'word' was firstly used. And it seems that even ENIAC used this term. Is it safe to say that term 'word' was invented with ENIAC?
4
votes
1answer
282 views

ENIAC stands for Electrical Numerical Integrator And Calculator; what made it particularly suitable for numerical integration?

The acronym ENIAC stands for Electrical Numerical Integrator And Calculator. The fact that it was simpy a numerical computer means it probably could be used to perform numerical integration in some ...