Computer Hardware MCQ. Basic to advanced objective multiple choice Questions and answers for competitive exams with PDF.
Computer Hardware MCQ
1. Processor, main memory (RAM), hard disk, CD/DVD drive, CMOS, BIOS chip, etc. are housed inside _____.
(a) input unit
(b) Central Processing Unit (CPU)
(c) output unit
(d) all of them
Ans. b
2. ______ contains slots for fixing/ connecting processor, main memory (RAM), hard disk, CD/DVD drive, CMOS, BIOS chip, etc.
(a) Mother board
(b) bread board
(c) key board
(d) dash board
Ans. a
3. A stylus used to provide input through CRT monitor is called _______.
(a) scanner
(b) digital tablet
(c) light pen
(d) printer
Ans. c
4. VDU is expanded as ______.
(a) Visual Display Unit
(b) Virtual Display Unit
(c) Visual Deception Unit
(d) Visual Display University
Ans. a
5. In computer monitors, CRT stands for _____.
(a) Cadmium Ray Tube
(b) Cathode Ray Tube
(c) Cathode Ray Twist
(d) Cathode Rim Tube
Ans. b
6. Cathode Ray Tube (CRT) monitor has ______ level of power consumption amongst monitors.
(a) highest
(b) lowest
(c) zero
(d) least
Ans. a
7. LCD is expanded as _____.
(a) Linear Crystal Display
(b) Liquid Crystal Dialog
(c) Liquid Crystal Display
(d) Liquid Canister Display
Ans. c
8. LED is expanded as _______.
(a) Linear Emitting Diode
(b) Light Emitting Diode
(c) Liquid Emitting Diode
(d) Light Emitting Display
Ans. b
9. The display of LCD monitor is ______ than that of LED monitor.
(a) lighter
(b) heavier
(c) brighter
(d) duller
Ans. d
10. Height to width ratio of a monitor screen is called ______.
(a) aspect ratio
(b) length ratio
(c) width ratio
(d) diagonal ratio
Ans. a
11. Generally, CRT monitors had aspect ratio of ______.
(a) 16:9
(b) 4:3
(c) 16:10
(d) 1:1
Ans. b
12. The type of printer which hits the paper to produce print is called _____.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. d
13. The type of printer which does not hit the paper to produce print is called ______.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. c
14. Dot matrix printer belongs to _______ category.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. d
15. LASER printer, ink jet printer, thermal printer and plotter belong to ____ category.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. c
16. Thermal printer uses ______ coated paper, which turns black when heat is applied.
(a) chromium
(b) BisPhenol
(c) nickel
(d) toner powder
Ans. b
17. The unit which splits power supply to various voltages required for their units of a computer is called _____ .
(a) transformer
(b) Switch Mode Power Supply (SMPS)
(c) transistor
(d) transducer
Ans. b
18. Full form for SMPS in computer is _____.
(a) Sync Mode Power Supply
(b) Switch Mode Power Supply
(c) Stake Mode Power Supply
(d) Switch Mode Power Socket
Ans. b
19. In a desktop computer, _____ produces radio frequency interference.
(a) SMPS
(b) Micro-Processor
(c) RAM
(d) Mouse
Ans. b
20. The opening provided in the front panel or rear panel of a CPU for connecting peripherals is called _____.
(a) socket
(b) pin
(c) port
(d) part
Ans. c
21. External dialup MODEM can be connected to a computer using ______ port.
(a) RS232/ serial
(b) PS/2
(c) VGA
(d) LPT
Ans. a
22. Old style (SIMPLEX) printer (like dot matrix printer) may be connected to a computer using _____ port.
(a) RS232/ serial
(b) PS/2
(c) VGA
(d) LPT
Ans. d
23. Modern (DUPLEX) printer (like LASER jet, inkjet printers) may be connected to a computer using ______ port.
(a) RS232/ serial
(b) USB
(c) PS/2
(d) VGA
Ans. b
24. Broadband connection may be connected through _____ port.
(a) RJ45/ Ethernet
(b) USB
(c) PS/2
(d) VGA
Ans. a
25. Printer, fax machine, scanner, web camera, external DVD writer, external hard disk, etc. can be connected to computer using ______ port.
(a) RJ45
(b) USB
(c) PS/2
(d) VGA
Ans. b
26. Joystick can be connected to computer using ______ port.
(a) 3.5mm jack
(b) RJ11
(c) RJ45
(d) Game
Ans. d
27. PS/2 stands for ______.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. c
28. RJ11 stands for _____.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. a
29. RJ45 stands for _____ .
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. b
30. RS232 stands for _____.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. d
31. RJ45 port is otherwise called ______.
(a) Ethernet
(b) LPT
(c) USB
(d) VGA
Ans. a
32. IEEE 1392 port is otherwise called ______.
(a) Ethernet
(b) LPT
(c) USB
(d) Firewire
Ans. d
33. LPT stands for _____.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Line Printer Terminal
(d) Recommended Standard 232
Ans. c
34. USB stands for ______.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Line Printer Terminal
(d) Universal Serial Bus
Ans. d
35. High definition graphics output may be taken from port of a PC.
(a) 3.5mm jack
(b) HDMI
(c) RJ45
(d) LPT
Ans. b
36. HDMI stands for ______.
(a) Registered Jack 11
(b) High Definition Multimedia Interface
(c) Line Printer Terminal
(d) Universal Serial Bus
Ans. b
37. The device primarily used to provide hardcopy is the
a) CRT
b) Computer Console
c) Printer
d) Card Reader
Ans. c
38. Dot-matrix, Deskjet, Inkjet and Laser are all types of which computer peripherals?
a) Printers
b) Software
c) Monitors
d) Keyboards
Ans. a
39. Laser printer belong to
a) line printer
b) page printer
c) band printer
d) dot matrix printer
Ans. b
40. A joystick is primarily used for
a) control sound on the screen
b) Computer gaming
c) enter text
d) draw pictures
Ans. b