- 
					 Which of the following is used as a primary memory of computer?
- 
                        - Optical storage device
- Magnetic storage device
- RAM
- Magneto-Optical storage device
 
Correct Option: C
Primary storage, also known as main storage or memory, is the area in a computer in which data is stored for quick access by the computer’s processor. The terms random access memory (RAM) and memory are often as synonyms for primary or main storage. 
 
	