Firmware is a kind of software program that’s embedded in {hardware} units. It’s answerable for controlling the low-level capabilities of the machine, comparable to the way it interacts with different units and the way it responds to consumer enter. Firmware is usually saved in ROM (read-only reminiscence), which implies that it can’t be simply modified or up to date. Examples of firmware embody the BIOS (primary enter/output system) on a pc motherboard, the firmware on a digital digital camera, and the firmware on a cellular phone.
Firmware is vital as a result of it permits {hardware} units to operate correctly. With out firmware, units wouldn’t be capable to carry out primary duties, comparable to turning on, responding to consumer enter, or speaking with different units. Firmware additionally performs a job in safety, as it may be used to guard units from malware and different threats.
