MCQs of Complete Computer System
- What is the primary function of the Central Processing Unit (CPU)?
- a) Long-term storage
b) Data input
c) Executing instructions
d) Displaying graphics
Answer: c) Executing instructions
- Which type of memory is volatile and loses its content when the power is turned off?
- a) ROM
b) Cache memory
c) RAM
d) Virtual memory
Answer: c) RAM
- Which storage device uses spinning magnetic disks for data storage?
- a) SSD
b) Flash drive
c) HDD
d) CD-ROM
Answer: c) HDD
- What is the primary function of the motherboard?
- a) Store data
b) Execute instructions
c) Connect all components
d) Display graphics
Answer: c) Connect all components
- Which device converts AC power from the outlet into DC power for the computer components?
- a) RAM
b) CPU
c) PSU
d) SSD
Answer: c) PSU
- What do Input Devices primarily facilitate?
- a) Displaying data
b) Storing data
c) Inputting data
d) Processing data
Answer: c) Inputting data
- Which type of memory is non-volatile and retains its content even without power?
- a) Cache memory
b) RAM
c) ROM
d) Virtual memory
Answer: c) ROM
- Which device is responsible for displaying or presenting processed data to the user?
- a) Keyboard
b) Monitor
c) CPU
d) SSD
Answer: b) Monitor
- What component is plugged into motherboard slots to add additional capabilities to a computer?
- a) PSU
b) CPU
c) Expansion card
d) RAM
Answer: c) Expansion card
- Which storage device uses NAND-based flash memory?
- a) HDD
b) SSD
c) CD-ROM
d) Floppy disk
Answer: b) SSD
