The ENIAC was invented by J. Presper Eckert and John Mauchly at the University of Pennsylvania and began construction in 1943 and was not completed until 1946. It occupied about 1,800 square feet and used about 18,000 vacuum tubes, weighing almost 50 tons.

Explanation:

Computers have evolved and advanced significantly over the decades since they originated. Many years ago, in their most rudimentary form, computers were very large and slow. Gradually, computers have become smaller and faster, enabling people to use them virtually anywhere.

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3 years ago

What is your understanding of the difference between an unconditionally secure cipher and a computationally secure cipher?

Maru [420]

Answer:

The unconditionally secured is basically define as, the cipher content produced by the plan that doesn't contain enough data to decide the comparing plain message ,regardless of what number of figure content is accessible.

It is basically used to determine the uniquely plain content without knowing the actual availability of the cipher.

The computationally secure cipher is the encryption scheme which is basically required the time for breaking the cipher which exceeds the helpfulness lifetime of that data. The expense of breaking the figure surpasses the estimation of scrambled data

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3 years ago