In the context of computer hardware components, what is the primary function of ROM?

Correct option is B

Correct Answer is (B) It holds essential firmware required for booting the system.

Sol.

ROM (Read-Only Memory) is a non-volatile memory that stores essential firmware or software needed for booting up the system and performing basic hardware initialization. This firmware typically includes the BIOS (Basic Input/Output System) or UEFI (Unified Extensible Firmware Interface) which is responsible for the system's startup process and hardware detection before the operating system is loaded.

Information Booster:

• ROM retains its data even when the computer is powered off, making it crucial for storing vital instructions that are required for booting the system.
• Unlike RAM (Random Access Memory), ROM cannot be easily modified, which helps protect the critical boot-up information from being altered or erased.
• The data in ROM is typically hard-coded by the manufacturer and cannot be changed or erased by regular programs.
• ROM is essential for the initial stages of computer operation, ensuring that the system can start properly before it loads the operating system and other software from disk storage.

Additional Information:

• Other types of ROM:
• PROM (Programmable ROM): Can be written to once after manufacture.
• EPROM (Erasable Programmable ROM): Can be erased and reprogrammed using ultraviolet light.
• EEPROM (Electrically Erasable Programmable ROM): Can be erased and reprogrammed electrically.