BIOS, which stands for basic input/output system, is a program stored in non-volatile memory that serves as the first level of communication between your computer and its hardware. It helps configure and access your computer system at the most basic level possible.
When you turn on your computer, the CPU accesses the BIOS before the operating system is loaded. The BIOS then examines all the hardware connections in your computer and detects all connected devices. It includes a test called POST (Power On Self Test) that verifies the computer meets the requirements to start up properly.
The BIOS is pre-installed on Windows-based computers found on motherboard and specifically designed to work with that computer or motherboard model. It interfaces with various devices, especially the system chipset. Later computer systems have the BIOS firmware stored in flash memory that can be rewritten without removing the chip from the motherboard.
While most people don’t have to fiddle with the BIOS on their computer, it’s better to know what it is and how it works. A failed BIOS update can brick the motherboard, but it also allows for easy updates to the BIOS firmware and is useful in detecting problems with hardware or settings on your computer. The latest version of Microsoft Windows to run on PCs using BIOS firmware is Windows 10.
FAQs
What is POST in BIOS?
POST (Power On Self Test) is a test run by BIOS to verify that the computer meets the requirements to start up properly. If the computer fails POST, you will hear a combination of beeps indicating what’s wrong with the computer.
What’s the advantage of updating the BIOS firmware?
Updating BIOS firmware is beneficial because it allows for easy updates to BIOS firmware, which adds new features and fixes bugs. It’s also useful in detecting problems with hardware or settings on your computer.
Can I run Windows 10 on a computer that has BIOS firmware?
Yes, you can run Windows 10 on PCs using BIOS firmware.
Final Thoughts
While the BIOS is something most users don’t have to worry about, it’s an essential part of your computer system. Knowing what it is and how it works can help you detect problems with your hardware and settings.
