What is bios

BIOS” (Basic Input/Output System) is software or firmware that enables you to start a computer system. The BIOS runs the Power On Self Test when the system starts up, to ensure that all hardware connected to the system is working properly.


It completes the basic maintenance of the system by checking all the hardware connected to the system and loading the operating system (OS) which you can modify by changing the BIOS settings to improve the performance of the computer system or the system problem. can troubleshoot. The BIOS running in memory includes all the various drivers that provide an interface to the hardware on the OS. The BIOS is preloaded in the ROM chip.