RESET is generally a
pin on a
microprocessor that, when
frobbed, the
processor will:
- Set its registers to a predetermined state
- Flush/clear any onboard cache
- Discard pending interrupts
- Jump to a particular (often hardwired) memory location.
Of course, each processor handles frobbing of its RESET
line in a different way.
RESET can also be a button on a computer which will restart it; part of what this button does is usually frobbing the above-mentioned RESET pin.