FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -ROM (Read Only Memory) is memory containing hardwired and permanent instructions that the computer uses when it boots up, before the system software loads.

Detailed explanation-2: -Hard disks are nonvolatile storage devices that are used to store and retrieve data quickly. Nonvolatile storage is physical media that retains data without electrical power. This means that no data is lost when the computer is powered off, making hard disks suitable for permanent storage of information.

Detailed explanation-3: -A hard drive is the hardware component that stores all of your digital content. Your documents, pictures, music, videos, programs, application preferences, and operating system represent digital content stored on a hard drive.

Detailed explanation-4: -Function of RAM Because of its volatility, RAM can’t store permanent data. RAM can be compared to a person’s short-term memory, and a hard disk drive to a person’s long-term memory.