Machines or devices that process or handle something, like computer processors that do calculations, or machines that process food or materials.
From 'process' (Latin 'processus' meaning forward movement) plus '-or' (one who does). Modern meaning expanded with computers in the 20th century.
The fastest computer processors today can perform billions of operations per second—billions—yet they're built on the same fundamental logic gates that early computers used in the 1940s.
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