Memory that retain its contents even when the power is switched off is known as:

Correct option is B

The correct answer is (b) Non-volatile
Explanation:
● Non-volatile memory is a type of computer memory that can retain the stored information even when not powered.
● Examples include ROM (Read Only Memory), Hard Drives, Flash Drives, and Memory Cards.
Information Booster:
● Volatile memory loses its data when the power is turned off. The most common example is RAM (Random Access Memory).
● Static RAM (SRAM) is a type of volatile memory.
Additional Knowledge:
● Non-volatile memory is essential for storing the boot loader and OS files.