Which type of memory is used to store the BIOS in a computer system?

Solution (By Examveda Team)

ROM is the type of memory used to store the BIOS (Basic Input/Output System) in a computer system. The BIOS is firmware that initializes hardware components during the boot process and provides basic functionality for the operating system to load.

   - ROM is non-volatile memory, meaning its contents are retained even when the computer is powered off.
   - The BIOS is stored in ROM because it needs to be accessible immediately upon startup to initialize hardware and perform system checks.
   - ROM is typically smaller in capacity compared to RAM and is used for critical system functions that must not be altered easily.
   - It is called "read-only" because its contents are typically written during manufacturing and cannot be easily modified by normal computer operations.

Option B: RAM (Random Access Memory)
RAM is volatile memory used for temporary data storage while the computer is running. It loses its contents when the power is turned off, so it is not suitable for storing the BIOS.

Option C: Cache Memory
Cache memory is used to store frequently accessed data and instructions to reduce access time from slower main memory (RAM). It is not used to store the BIOS.

Option D: Virtual Memory
Virtual memory is a memory management technique that uses secondary storage (like hard drives) as an extension of RAM. It is not used to store the BIOS.

Conclusion:
Among the given options, Option A: ROM is the correct answer because ROM is specifically designed to store the BIOS in a computer system, ensuring that it is accessible immediately upon system startup and remains intact even when the computer is powered off.