Correct Answer:
D. RAM
Memory in computers can be classified as volatile or non-volatile. Volatile memory loses its stored information when the power is turned off, while non-volatile memory retains it.
- RAM (Random Access Memory) is the correct answer. RAM is a type of volatile memory. It requires continuous power to maintain the stored data. When the computer is turned off or loses power, all data stored in RAM is lost. It serves as the computer's primary working memory for programs and data currently in use.
- ROM (Read-Only Memory) is incorrect. ROM is non-volatile memory. It retains its contents even when the power is off, typically storing essential boot-up instructions (firmware) that don't change frequently.
- Hard Disk is incorrect. A hard disk drive is a non-volatile storage device. It stores data persistently, meaning the data remains even after the computer is powered down.
- Pendrive (USB flash drive) is incorrect. Pendrives use flash memory, which is a type of non-volatile memory. Data stored on a pendrive remains intact without power.
Therefore, RAM's characteristic of losing data without power makes it the quintessential example of volatile memory.