Question

The history of computers states about years ago​

Answer 1

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The progression in hardware representation of a bit of data:

Vacuum Tubes (1950s) - one bit on the size of a thumb;

Transistors (1950s and 1960s) - one bit on the size of a fingernail;

Integrated Circuits (1960s and 70s) - thousands of bits on the size of a hand

Silicon computer chips (1970s and on) - millions of bits on the size of a finger nail.

The progression of the ease of use of computers:

Almost impossible to use except by very patient geniuses (1950s);

Programmable by highly trained people only (1960s and 1970s);

Useable by just about anyone (1980s and on).

to see how computers got smaller, cheaper, and easier to use.