Basic Input/Output System (BIOS)
pcBIOS is a firmware that initializes and tests hardware components during the computer's booting process.
expanded
The BIOS is crucial for initializing system hardware and providing runtime services for operating systems and programs. It conducts the Power-On Self Test (POST) to ensure that essential hardware components like the CPU, RAM, and storage devices are functioning correctly. It is stored on a non-volatile memory chip on the motherboard, ensuring that settings are retained between system reboots.
examples
A BIOS setup access key is pressed during system boot-up to configure hardware parameters, such as enabling virtualization technology or adjusting boot device priorities.
This process is typically performed during the initial system setup or when altering hardware configurations, often required by IT professionals maintaining networked workstations.
Updating the BIOS to the latest version to improve hardware compatibility and security features, such as adding support for newer processor families or patching vulnerabilities.
BIOS updates are frequently carried out in enterprise environments as part of routine system maintenance cycles to ensure reliable and secure operations.