The BIOS here stands for English Input ( Basic Input / Output System ) which means Basic Import / Export System . The BIOS is inside the personal computer , on the main board . The BIOS is considered as the program that was first run when the computer boots. The main function of the BIOS is to prepare the computer so that software programs stored on storage devices (such as hard drives , floppy disks and CD disks ) can be loaded, executed and controlled. count. This process is called boot .
The term first appears in the CP / M operating system , which is the CP / M part that is uploaded during the boot process, which directly interacts with the hardware (CP / M machines often have only one launcher). dynamic in ROM ). Famous versions of DOS have a file called "IBMBIO.COM" or "IO.SYS" that has the same functionality as BIOS CP / M.
However, today's BIOS term refers to another software program contained in the chips available on the main board such as PROM, EPROM, and it holds the functions for machine preparation and finding the memory drive as well as the link. lost and assigned the operating machine back to the operating system .
The BIOS is also a standard part of the computer . A computer may lack a monitor , a keyboard , a mouse , a hard drive , ... but it cannot be missing the BIOS
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