A computer’s system BIOS, or basic input/output system, is firmware that allows a motherboard to boot, test basic system devices to ensure that they are working properly and prepare the system for booting up the operating system stored on the computer’s hard drive. The basic black or blue text screens that appear when a computer is first turned on are part of the BIOS utility. Updating a computer’s BIOS can help ensure that it boots up and runs as efficiently as possible. Writer Bio
