OCR A Level Computer Science

1.2.1f: BIOS.

Keywords:
Software and software development
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KeywordDefinition
BIOS (Basic Input Output System)is a software program that is stored in a computer's non-volatile memory (usually ROM or flash memory) and is responsible for booting the computer and providing basic services to the operating system.
Non-volatile memoryMemory that retains its contents when the power is turned off.
POST (Power On Self Test)a series of checks which is carried out on computer hardware after it is switched on
User interfaceA means of interacting with a computer, such as a graphical user interface (GUI) or command-line interface (CLI).
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