How-To Geek


Firmware is a set of operating instructions embedded in a computer system on a non-volatile memory chip. Common electronics like GPS units, network routers, and gaming consoles routinely have their operating instructions fully or partially stored as firmware.

Firmware-based operating instructions are ideal for storing basic instructions necessary for starting a more complex system (such as a computer BIOS), applications where there is no system hard drive present (such as ultra-compact MP3 players), and situations where the operating instruction set is small and needs to be stored in a dependable and corruption-resistant fashion (such as network routers).

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