What is BIOS (Basic Input Output System) in Computer And Why It's Important?

What is BIOS (Basic Input Output System) in Computer And Why It's Important?

BIOS (Basic Input Output System) is software who is stored on a small memory chip on the motherboard and used to perform hardware initialization during the booting process and to provide runtime services for operating systemsBIOS is the very first software to run when a computer is started.
What is BIOS (Basic Input Output System) in Computer And Why It's Important?
What is BIOS (Basic Input Output System) in Computer And Why It's Important?
The BIOS firmware is non-volatile, means that BIOS settings and data always saved even after power has been removed from the device.

Why BIOS is Important?

BIOS (Basic Input Output System) give orders to the computer on how to perform basic tasks and functions like booting and keyboard control.

BIOS is also used to recognize and configure the hardware in a computer like the Hard drive, RAM, Mouse, Keyboard, Speakers, Printer, CPU, etc.

How to Access BIOS Setup?

The BIOS is accessed and configured via the BIOS Setup Utility.  All available options in BIOS are configurable through the BIOS (Basic Input Output System) Setup Utility.

BIOS is pre-installed when the computer is purchased it can't be installed like windows.

The BIOS Setup Utility is accessed in many ways it's depending on your motherboard's model.

BIOS Availability

All latest computer motherboards contain BIOS firmware. BIOS access and configuration on computer systems is independent of any operating system because the BIOS is part of the hardware. Even if there is no operating system in the computer, the BIOS (Basic Input Output System) firmware is always available because BIOS firmware installed in the motherboard.

Top BIOS Manufacturers

The following are some of the Top BIOS (Basic Input Output System) Manufacturers:


BIOS Functions And Its Uses

BIOS contains many hardware configuration functions that can be changed via the setup utility. 

Here are some common functions you can do in most BIOS systems via BIOS setup utility:

Enable or Disable RAID
Enable or Disable Onboard USB
Enable or Disable Onboard IEEE1394
Enable or Disable Onboard Audio
Enable or Disable Onboard Floppy Controller
Enable or Disable Onboard Serial/Parallel Ports
Enable or Disable ACPIChange the ACPI Suspend Type
Change the Power Button Function
Change Power-on Settings
Multi-Display Setups
Reset Extended System Configuration Data (ESCD)
Enable or Disable BIOS Control of System Resources
Change Fan Speed Settings
View CPU and System Temperatures
View Fan Speeds
View System VoltagesChange the Boot Order
Load BIOS Setup Defaults
Remove a BIOS Password
Create a BIOS Password
Change the Date and Time
Change Floppy Drive Settings
Change Hard Drive Settings
Change CD/DVD/BD Drive Settings
View Amount of Memory Installed
Change the Boot Up NumLock Status
Enable or Disable the Computer Logo
Enable or Disable the Quick Power On Self Test
Enable or Disable the CPU Internal Cache
Enable or Disable the Caching of BIOS (Basic Input Output System)
Change CPU Settings
Change Memory Settings
Change System Voltages

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What is BIOS (Basic Input Output System) in Computer And Why It's Important? What is BIOS (Basic Input Output System) in Computer And Why It's Important? Reviewed by Technowap on June 20, 2019 Rating: 5

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