Auxiliary computer hardware is equipment that’s used for input, output and data storage, including an adapter that enables one type of device to communicate with another and a complementary metal-oxide-semiconductor (CMOS), an onboard, battery-powered semiconductor chip inside a computer that stores data, including system hardware settings and system time and date.
In addition to all the items, there’s more computer hardware called auxiliary hardware, of which a computer might have none, or several, of some kinds:
- Fan (CPU, GPU, Case, etc.)
- Heat Sink
- Data Cable
- Power Cable
- CMOS Battery: CMOS (short for complementary metal-oxide-semiconductor) is the term usually used to describe the small amount of memory on a computer motherboard that stores the BIOS settings. Some of these BIOS settings include the system time and date as well as hardware settings.
- Daughter board
Some of the devices listed above are called peripheral devices. A peripheral device is a piece of hardware (whether internal or external) that isn’t actually involved in the computer’s main function. Examples include a monitor, video card, disc drive, and mouse.