Memory & Storage

Front

Computer memory is non-permanent. For this reason, it’s called ___

Back

volatile memory

Front

Any data written to storage, like your hard drive, will remain intact even if the power goes out. It’s ___

Back

non-volatile

Front

What was the earliest form of computer storage? Options: magnetic core memory, magnetostrictive delay lines, delay line memory, paper punch cards

Back

paper punch cards

Front

By the 1940s, punch cards had largely standardized into a grid of 80 columns and 12 rows, allowing up to ___

Back

960 bits of data

Front

The largest program ever punched onto cards, that we know of, was the US Military’s ___

Back

SAGE Air Defense System

Front

Which form of memory, using liquid filled tubes, was developed by J. Presper Eckert in 1944?

Back

delay line memory

Front

Which liquid was commonly used to fill the tubes in delay line memory?

Back

mercury

Front

Which early stored-program computer was completed in 1949 and used 128 Delay Lines?

Back

EDVAC

Front

In delay line memory, since you had to wait for a data bit to come around in the loop, it was called ___

Back

sequential or cyclic-access memory

Front

Modern memory, where we can access any bit at any time, is known as ___

Back

random access memory