Which one of the following is a secondary storage device?

Correct option is C

A hard disk is a secondary storage device used to permanently store data, applications, and the operating system. It is non-volatile, meaning the data is retained even when the power is turned off. Secondary storage devices are used to hold large amounts of data for long-term use, unlike primary memory which is temporary.

Important Key Points:

1. Secondary storage is used for permanent data storage and has larger capacity than primary memory.
2. Examples include hard disks, SSDs, CDs, DVDs, and USB drives.
3. Unlike RAM, data in secondary storage is not lost when the computer is switched off.

Knowledge Booster:

• Monitor: An output device used to display visual information; it is not used for data storage.
• RAM (Random Access Memory): A primary memory used for temporary data storage during program execution; data is erased when power is off.
• Processor (CPU): The central processing unit; it executes instructions but does not store large volumes of data.