What is the full form of BIOS in computer? Only full form.
The Correct Answer and Explanation is:
The full form of BIOS is Basic Input/Output System.
Explanation:
BIOS is a firmware embedded in a computer’s motherboard that serves as an interface between the computer’s hardware and the operating system. It is responsible for performing basic hardware initialization during the booting process and providing runtime services for operating systems and programs. The BIOS also conducts a POST (Power-On Self-Test) to check if the hardware components (like RAM, keyboard, and drives) are functioning properly before the operating system loads.
In modern computers, BIOS has been largely replaced by UEFI (Unified Extensible Firmware Interface), but the term “BIOS” is still commonly used. UEFI is a more advanced version with a graphical user interface, more secure boot options, and support for larger storage devices, among other improvements.
The BIOS operates during the startup process, helping to identify and initialize hardware like the CPU, RAM, storage drives, and peripheral devices, such as a mouse or keyboard. It also manages the boot sequence, determining where the operating system will be loaded from—whether from a hard drive, SSD, optical drive, or USB device.
In addition, BIOS stores system settings such as the system clock, boot order, and device configurations in a small memory chip on the motherboard. These settings can be accessed and modified by the user through the BIOS Setup Utility, usually entered by pressing a key like Del or F2 during startup.
Despite the rise of UEFI, BIOS remains crucial for booting older systems and ensuring compatibility with older hardware. It has been the foundation for system booting and hardware configuration for decades.
