The principal job of a computer’s BIOS is to govern the early stages of the startup process, ensuring that the operating system is correctly loaded into memory. BIOS is vital to the operation of most modern computers, and knowing some facts about it could help you troubleshoot issues with your machine.
What is the most important function of the BIOS?
BIOS uses Flash memory, a type of ROM. The BIOS software has a number of different roles, but its most important role is to load the operating system. When you turn on your computer and the microprocessor tries to execute its first instruction, it has to get that instruction from somewhere.
What is the importance of setting the configuration of the BIOS?
The BIOS controls how your computer starts up, makes sure that it’s working properly and serves as a gatekeeper for its various parts. While its default settings are usually more than adequate for most business purposes, most BIOSes are also configurable.
What are the four functions of a BIOS?
The 4 functions of BIOS
- Power-on self-test (POST). This tests the hardware of the computer before loading the OS.
- Bootstrap loader. This locates the OS.
- Software/drivers. This locates the software and drivers that interface with the OS once running.
- Complementary metal-oxide semiconductor (CMOS) setup.
What function does BIOS perform?
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.)
How do I change BIOS settings?
How to enter the BIOS on a Windows 10 PC
- Navigate to Settings. You can get there by clicking the gear icon on the Start menu. …
- Select Update & Security. …
- Select Recovery from the left menu. …
- Click Restart Now under Advanced startup. …
- Click Troubleshoot.
- Click Advanced options.
- Select UEFI Firmware Settings. …
- Click Restart.
Where are BIOS settings?
To access your BIOS, you’ll need to press a key during the boot-up process. This key is often displayed during the boot process with a message “Press F2 to access BIOS”, “Press <DEL> to enter setup”, or something similar. Common keys you may need to press include Delete, F1, F2, and Escape.
How do I check my BIOS settings?
Finding the BIOS Version on Windows Computers Using the BIOS Menu
- Restart the computer.
- Open the BIOS menu. As the computer reboots, press F2, F10, F12, or Del to enter the computer BIOS menu. …
- Find the BIOS version. In the BIOS menu, look for BIOS Revision, BIOS Version, or Firmware Version.
What happens when reset BIOS?
Resetting your BIOS restores it to the last saved configuration, so the procedure can also be used to revert your system after making other changes. Whatever situation you may be dealing with, remember that resetting your BIOS is a simple procedure for new and experienced users alike.
What can you configure in BIOS?
Here are some common things you can do in most BIOS systems:
- Change the Boot Order.
- Load BIOS Setup Defaults.
- Flash (Update) BIOS.
- Remove a BIOS Password.
- Create a BIOS Password.
- Change the Date and Time.
- Change Floppy Drive Settings.
- Change Hard Drive Settings.