Unit-4: Inside System Unit  (20 MCQs)

11th Class Computer Science MCQs Preparation 

National Book Foundation
as
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1. Which port is generally used to connect video devices to the computer?




... Answer is A. FireWire
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2. What is a computer casing with all the components installed inside it called?




... Answer is D. System Unit
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3. What is the interface that provides connection to external devices called?




... Answer is D. Port
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4. Which of the following provides an interface to the network?




... Answer is A. NIC
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5.  Which part of the computer protects and organizes all the main parts of the computer?




... Answer is C. Casing
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6. What is the purpose of the power supply in the computer?




... Answer is C. to convert AC to low voltage DC
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7. Which circuit board connects all the components of the computer? :




... Answer is A. Motherboard
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8. What is BIOS?




... Answer is D. Non-volatile ROM chip
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9. Which of these provides the high-speed channel for attaching the video card to the motherboard?




... Answer is B. AGP
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10. Which card displays text, graphics, and images on the screen?




... Answer is D. Video graphics card
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11. ____________ of computer converts AC voltage to DC voltage.




... Answer is A. Power supply
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12. ____________ saves the processor from overheating.




... Answer is B. Cooling system
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13. ______________is the rectangular-shaped port that connects video devices to computers.



... Answer is C. Firewire
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14.  ___________ transmits Audio-Video data in totally digital form via a single



... Answer is B. HDMI
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15. Dial-up Modems can transmit up to ____________




... Answer is A. 56 KBPS
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16.. ISDN Modems can transmit up to ____________




... Answer is B. 128 KBPS
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17.. NIC is also known as



... Answer is C. LAN Card
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18. ____________ can read or write 4 words of data per clock cycle.




... Answer is B. DDR-2
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19. ____________ interfaces can provide communication at the rate of 3GB/sec.




... Answer is C. SATA-2
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20. System unit contains ____________ main components. :




... Answer is A. 2
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