CMOS stands for Complementary Metal Oxide Semiconductor. Even though it’s a small chip on your motherboard, it does a lot more than you might expect. First, let’s clear up a common misunderstanding: ...

The most obvious one involves going into the BIOS menu, but there are also hardware options that involve removing and reseating the CMOS battery or moving around a jumper on the motherboard.

A battery that maintains the time, date, hard disk and other configuration settings in the CMOS memory. CMOS batteries are small and are attached directly to the motherboard. See BIOS setup and ...