Misconceptions.

A computer doesn't need to be electronic , nor even have a processor , nor RAM , nor even a hard disk . While popular usage of the word "computer" is synonymous with a personal electronic computer, the modern[76] definition of a computer is literally: "A device that computes, especially a programmable [usually] automated machine that performs high-speed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information. "[77] Any device which processes information qualifies as a computer, especially if the processing is purposeful.