Top 40 Input and Output Devices MCQ Questions
Here, we have listed the most important input and output devices MCQ questions with answers. These I/O devices MCQ questions can be asked in any competitive exams like SSC, IBPS (PO and Clerk), RRB, etc. So, you must prepare answers to these multiple-choice questions to crack the exams.
I/O devises Multiple-Choice Questions
1. A device that allows users to feed data into a computer for analysis and storage and to give commands to the computer is called
a) Output device
b) Input device
c) Memory
d) Both a and b
Answer: (b)
2. User communicates with a computer with the help of which devices?
a) Input device
b) Output device
c) Software device
d) Both a and b
Answer: (d), Input-output device feeds data into and accepts data from a computer.
3. Which device allows you to enter data and instructions into a computer?
a) Input device
b) Output device
c) ALU
d) CPU
Answer: (a)
4. Which device converts human-understandable data and programs into a form that computers can understand and process?
a) Output
b) Monitor
c) Input
d) All of the above
Answer: (c)
5. A device that communicates the results of data processed by the computer and converts the digital information into a form that humans can easily read and understood is called
a) Input
b) Monitor
c) Output
d) Keyboard
Answer: (c)
6. Which of the following groups are only input devices?
a) Mouse, keyboard, monitor, Joystick
b) Mouse, keyboard, printer, Light pen
c) Mouse, keyboard, Scanner, Joystick, Light pen
d) Mouse, keyboard, Trackball, Touch Screen, Microphone
e) Both c and d
Answer: (e)
7. Which of the following is not a pointing device?
a) Mouse
b) Joystick
c) Light pen
d) Digitizer
Answer: (d), Digitizer is an input device that converts analog information into a digital form.
8. Which input device is used for input text, numbers, and commands to the computer?
a) Mouse
b) Keyboard
c) Scanner
d) All of the above
Answer: (b)
9. Which input device is/are used to move the cursor position on a monitor screen?
a) Mouse
b) Joystick
c) Light pen
d) Both a and b
Answer: (d)
10. The number of function keys in a keyboard is
(a) 14
(b) 12
(c) 13
(d) 15
Answer: (c)
11. Ctrl, Shift, and Alt are known as _ _ _ _ _ _ _keys.
(a) function
(b) modifier
(c) alphanumeric
(d) adjustment
Answer: (b)
12. Which key of keyboard is used to make characters either upper or lower case?
(a) ESC
(b) Return
(c) Shift
(d) Both a and c
Answer: (c)
13. The use of tab key in the keyboard is
(a) to move a cursor across the screen
(b) to indent a paragraph
(c) to move the cursor down the screen
(d) Both a and c
Answer: (d)
14. Mouse is
(a) pointing and drop device
(b) cursor-control device
(c) monitoring device
(d) Both a and b
Answer: (d)
15. The first computer mouse was developed by
(a) Douglas Engelbart
(b) William English
(c) Daniel Cougher
(d) Robert Zawaski
Answer: (a)
16. Optical mouse was built by
(a) IBM, 1920
(b) Intel, 1930
(c) Microsoft, 1999
(d) Dell, 2000
Answer: (c)
17. Which of the following is used in an optical mouse?
(a) Infrared light
(b) Light Emitting Diode (LED)
(c) Sensor
(d) Microwave
Answer: (b)
18. Wireless mouse communicates through
(a) radiowaves
(b) infrared wave
(c) microwaves
(d) Electromagnetic signal
Answer: (a)
19. Which of the following are not input devices?
(a) Webcam and Microphone
(b) Bar Code Reader and Smart Card Reader
(c) Optical Character Reader and Optical Mark Recognition
(d) Monitor and Printer
Answer: (d)
20. Which of the following is/are input devices?
(a) Track ball
(b) Scanner
(c) Touch screen
(d) Magnetic Ink Card Reader (MICR)
(e) All of the above
Answer: (e)
21. Which of the following is not an output device?
(a) Monitor
(b) Printer
(c) Headphone
(d) Speaker
(e) Scanner
Answer: (e)
22. A projector is an _ _ _ _ _ _ device that can take images generated by a computer and reproduce
them on a large, flat surface.
(a) input
(b) output
(c) input and output
(d) monitor input
Answer: (b)
23. The OCR stands for
(a) Outsized Character Reader
(b) Optical Character Reader
(c) Operational Character Reader
(d) Only Character Reader
Answer: (b)
24. The OMR stands for
(a) Optical Mark Recognition
(b) Optical Magnetic Reader
(c) Only Mark Recognition
(d) Optical Markup Recognition
Answer: (a)
25. The MICR stands for
(a) Magnetic Ink Card Reader
(b) Magnetic Ink Code Recognition
(c) Meta Ink Character Recognition
(d) None of these
Answer: (a)
26. Which kind of device is a digital camera?
(a) Output
(b) Input
(c) Input and Output
(d) Software
Answer: (b)
27. Which of the following groups consists of only output devices?
(a) Scanner, monitor, printer
(b) Mouse, monitor, printer
(c) Keyboard, monitor, printer
(d) Monitor, printer, plotter
Answer: (d)
28. Which of the following is not an output device?
(a) LCD
(b) Printer
(c) CRT
(d) Touch screen
Answer: (d)
29. The computer monitor is connected to CPU through
(a) Bus
(b) Cable
(c) Wire
(d) Line driver
Answer: (b)
30. The number of pixels displayed on the computer screen is called
(a) color depth
(b) resolution
(c) refresh rate
(d) viewing size
Answer: (b)
31. Which of the following is a combination of input-output devices?
(a) VDT
(b) Keyboard
(c) Printer
(d) Laser
Answer: (a)
32. Which of the following units are used to count the speed of the printer?
(a) CPM
(b) PPM
(c) LPM
(d) All of the above
Answer: (d)
33. The output quality of a printer is measured in
(a) dots per sq
(b) dots per inch
(c) dots printer per inch
(d) All of these
Answer: (a)
34. Which of the following is a kind of port?
(a) Serial
(b) Parallel
(c) AGP
(d) All of these
Answer: (d)
35. How many bits of data can be transferred by parallel port?
(a) 2
(b) 4
(c) 8
(d) 16
Answer: (c)
36. The full form of USB port is
(a) United Serial Bus
(b) Universal Serial By-pass
(c) Universal System Bus
(d) Universal Serial Bus
Answer: (d)
37. Which of the following is the fastest port data transfer?
(a) USB
(b) Serial
(c) Parallel
(d) Firewire
Answer: (d)
38. USB port is a
(a) Serial port
(b) Parallel port
(c) infrared port
(d) AGP port
Answer: (a)
39. Which post is widely used on wireless devices to connect with network devices for easy communication?
(a) Serial port
(b) Parallel port
(c) Infrared port
(d) AGP port
Answer: (c)
40. Which port can be used for transferring files between two computers?
(a) Serial port
(b) Parallel port
(c) Firewire port
(d) Infrared port
Answer: (c)
Hope that these input and output devices MCQ questions will help you to understand the level of questions asked in the various examinations. Many questions of the above list have been already asked in the various competitive exams. So, you must practice them.
All the best!!!
