What is the full form of BIOS? (a) Basic Input Output System (b) Best Input Output Software (c) Basic Input Output System (d) Best Input Output System
The Correct Answer and Explanation is:
The correct answer is (a) Basic Input Output System.
BIOS stands for Basic Input Output System. It is a firmware that is essential for the initial startup process of a computer. When you turn on a computer, the BIOS is the first program that runs, initiating the hardware and ensuring that the system is ready for use. It performs a diagnostic check, known as the POST (Power On Self Test), to verify that all the essential hardware components (like memory, keyboard, processor, etc.) are functioning correctly. Afterward, it hands control over to the operating system to complete the boot-up process.
The BIOS resides in a non-volatile memory chip on the computer’s motherboard. Unlike RAM, it does not lose its data when the computer is powered off, which allows it to perform its functions even when the computer is not actively running any operating system.
BIOS settings are configured through a setup utility, which is accessible when the computer starts up (usually by pressing a key like F2 or Del). Through this setup, users can configure various low-level settings for the hardware, such as system time and date, boot sequence, and power management features.
As technology has advanced, modern computers may use an updated version of BIOS called UEFI (Unified Extensible Firmware Interface), which offers more capabilities, such as a graphical interface and support for larger hard drives.
In summary, BIOS is crucial for starting up a computer and ensuring communication between the operating system and hardware components.
