Read-only memory

:Read only can also refer to a type of file system permissions

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Read-only memory (ROM) is used as a storage medium in computers. Because it cannot (easily) be written to, its main uses lie in the distribution of firmware (software that is very closely related to hardware, and not likely to need frequent upgrading).

Related Topics:
Computer - Firmware - Software - Hardware

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Modern semiconductor ROMs typically take the shape of IC packages, i.e. "computer chips", not immediately distinguishable from other chips like RAMs but for the text printed on the chips.

Related Topics:
Semiconductor - IC - RAMs

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