What is a BIOS PDF?
BIOS is short for „Basic Input Output System“. Actually, it is a group of programs in the ROM chip of computer main board. It saves the most important basic input and output programs of the computer, system settings and the self-checking and self-triggered programs.
What is BIOS and its function PDF?
BIOS (basic input/output system) is the program a computer’s microprocessor uses to start the computer system after it is powered on. It also manages data flow between the computer’s operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.
How BIOS works step by step?
This is its usual sequence:
- Check the CMOS Setup for custom settings.
- Load the interrupt handlers and device drivers.
- Initialize registers and power management.
- Perform the power-on self-test (POST)
- Display system settings.
- Determine which devices are bootable.
- Initiate the bootstrap sequence.
What are the basic BIOS functions?
BIOS, in full Basic Input/Output System, computer program that is typically stored in EPROM and used by the CPU to perform start-up procedures when the computer is turned on. Its two major procedures are determining what peripheral devices (keyboard, mouse, disk drives, printers, video cards, etc.)
What is my boot menu key?
Common keys for accessing the Boot Menu are Esc, F2, F10 or F12, depending on the manufacturer of the computer or motherboard. The specific key to press is usually specified on the computer’s startup screen.