BIOS Stands for Basic Input/Output System. It is in built software that the computer microprocessor uses when you power on your pc. This program is stored in Read Only Memory (ROM). The storage location for this software is normally located in the Motherboard. However with Modern computers it’s possible to store the program in a flash memory.
History Of Bios
The Basic Input/ Output System was developed by Gary Kildall and was first used in 1975 by the CP/M OS(Operating System).
Functions of BIOS
It is impossible for an Operating System such as Windows to operate or continue without BIOS. This is so because it is the BIOS that govern the startup process when you power on your pc by loading operating system. The basic thing that BIOS Does is loading a central system that can read the hardware that contains the (Operating system (OS).
The Basic Input/ Output System is the first thing that starts up-loads- when you start up a computer. It then initializes your hardware and loads primary part of the Operating system from the hard drive .It does so by configuring the system hardware with basic drivers so that the operating system can power on and start running. The driver prepares the OS Memory and configures ancillary supporting devices for use.
BIO loads the central basic system that can read the devices that contains the system operating system.
Summary of activities performed by BIOS:
•BIO initializes the startup process and manages power consumption.
• It loads device drivers
•It displays system settings.
• BIOS initiate the Bootstrap order.