What is the function of the BIOS?

The function of the BIOS (Basic Input/Output System) is primarily to initiate hardware checks and start the operating system during the booting process. When a computer is powered on, the BIOS performs a series of tests known as POST (Power-On Self Test) to ensure that the hardware components such as the CPU, memory, and storage devices are functioning correctly. Once these checks are completed successfully, the BIOS locates the operating system on the storage device and loads it into memory, allowing the computer to start operating normally.

This process is crucial because it sets the stage for the operating system to take control of the computer’s resources and manage them. Thus, the role of the BIOS can be summarized as the bridge between the hardware and the operating system, facilitating the initial startup and hardware recognition.

Other options, while related to computer functionality, do not accurately describe the primary role of the BIOS. For example, managing RAM is done by the operating system after the BIOS has completed its task; calculations are performed by the CPU, and storing system information permanently is typically handled by the hard drive or other storage devices rather than the BIOS.