Historically, mechanical computers were used in industry before the advent of the transistor.

The virus was an analog of a mechanical computer, of course.

It was a mechanical computer that did the necessary calculations.

He planned on building a mechanical computer to use this system, but never followed through with the plan.

It is also described as the first mechanical computer.

Hackworth recognized it as a rod logic system- a mechanical computer.

The idea of a purely mechanical computer is scarcely new.

So a mere mechanical computer will work faster than the electronic whirl-winds of today.

During the same period, a separate line of development was leading to the first reliable mechanical computers.

A separate mechanical computer was used to calculate the aim point.