Firmware
From Styleguide
firmware
Software that is stored on a hardware device rather than via external storage or hard disk. Usually used to hold critical system and startup files.
Some systems, such as the PlayStation Portable, have upgradeable firmware and require specific firmware versions needed to run certain games. Refer to these versions by their version number. The LocoRoco demo requires firmware version 2.7 or higher to play.
Example: The latest version of the PlayStation Portable firmware makes the system more difficult to hack.
Wrong: Firmware.
