MCQ on Input and Output Devices – Computer GK
Useful and informative MCQ on Input and Output Devices – Computer GK that includes topics like Input Devices – Keyboard, Mouse, Scanner, Joy Stick, Track Ball, Light pen, Graphic Tablet, Microphone, etc. and Output Devices – Monitor, Printer, Plotter, Projector, Speakers, Headphones, etc.
These MCQ on Input and Output Devices – Computer GK are very helpful for competitive exams such as CPCT, GATE, IES/ESE, IBPS PO, IBPS Clerk, SBI PO, SBI Clerk, RBI, SEBI, LIC, NICL, BCA, B.Sc. IT, DCA, SSC, RRB, NIELIT CCC, CTET, UDC NET, CUET, MCA, PGDCA, MCS, TET, State Police, BPO, etc.
These MCQ on Input and Output Devices – Computer GK have correct answers and brief explanations of each question for better understanding.
Q21. Which of the following is a type of computer monitor?
a) CRT
b) LCD
c) LED
d) All of the above
Show Answer
Correct Answer: d) All of the above
Explanation: Computer monitors come in various types, including Cathode Ray Tube (CRT), Liquid Crystal Display (LCD), and Light Emitting Diode (LED) monitors. CRT monitors are the oldest type, while LCD and LED monitors are more modern and energy-efficient options.
Q22. What is the primary difference between impact and non-impact printers?
a) Speed
b) Noise level
c) Printing method
d) Color quality
Show Answer
Correct Answer: c) Printing method
Explanation: Impact printers work by physically striking an ink ribbon against the paper to create characters or images, while non-impact printers use other methods, such as inkjet or laser technology, to transfer ink onto the paper without any physical contact.
Q23. Which of the following is an example of an impact printer?
a) Dot matrix printer
b) Inkjet printer
c) Laser printer
d) Thermal printer
Show Answer
Correct Answer: a) Dot matrix printer
Explanation: Dot matrix printers are a type of impact printer that uses a print head with small pins to strike an ink ribbon against the paper, creating characters or images. Other examples of impact printers include daisy-wheel and line printers.
Q24. Which of the following is an example of a non-impact printer?
a) Dot matrix printer
b) Inkjet printer
c) Daisy-wheel printer
d) Line printer
Show Answer
Correct Answer: b) Inkjet printer
Explanation: Inkjet printers are a type of non-impact printer that uses tiny nozzles to spray ink droplets onto the paper, creating characters or images. Other examples of non-impact printers include laser and thermal printers.
Q25. What is the resolution of a printer measured in?
a) CPS
b) DPI
c) PPM
d) LPM
Show Answer
Correct Answer: b) DPI
Explanation: The resolution of a printer is measured in dots per inch (DPI), which indicates the number of individual dots of ink a printer can produce within a one-inch space. Higher DPI values result in better print quality and more detailed images.
Q26. Which type of printer uses a laser beam to transfer toner onto paper?
a) Inkjet printer
b) Dot matrix printer
c) Laser printer
d) Thermal printer
Show Answer
Correct Answer: c) Laser printer
Explanation: Laser printers use a laser beam to create an electrostatic image on a drum, which then attracts toner particles. The toner is transferred onto the paper and fused using heat and pressure, creating a high-quality, durable print.
Q27. Which of the following printers is best suited for printing high-quality photographs?
a) Dot matrix printer
b) Inkjet printer
c) Laser printer
d) Thermal printer
Show Answer
Correct Answer: b) Inkjet printer
Explanation: Inkjet printers are well-suited for printing high-quality photographs due to their ability to produce a wide range of colors and fine details. They can achieve high resolutions and create smooth color transitions, making them ideal for photo printing.
Q28. What is the main advantage of using a thermal printer?
a) High print quality
b) Low noise level
c) Fast printing speed
d) Low maintenance
Show Answer
Correct Answer: d) Low maintenance
Explanation: Thermal printers have low maintenance requirements because they do not use ink or toner cartridges. Instead, they use heat-sensitive paper or a thermal transfer ribbon, which eliminates the need for regular ink or toner replacement.
Q29. Which type of printer is commonly used for printing labels and barcodes?
a) Dot matrix printer
b) Inkjet printer
c) Laser printer
d) Thermal printer
Show Answer
Correct Answer: d) Thermal printer
Explanation: Thermal printers are commonly used for printing labels and barcodes due to their fast printing speed, low maintenance requirements, and ability to produce durable prints that can withstand harsh conditions.
Q30. What is the primary disadvantage of using a dot matrix printer?
a) Low print quality
b) High noise level
c) Slow printing speed
d) High maintenance
Show Answer
Correct Answer: b) High noise level
Explanation: Dot matrix printers are known for their high noise levels due to the physical impact of the print head striking the ink ribbon against the paper. This can be a disadvantage in environments where noise reduction is important.
More MCQ on Computer GK for Competitive Exams
- Introduction to Computer
- Basic Computer Organization
- Number Systems
- Computer Codes
- Processor and Memory
- Secondary Storage Devices
- Input and Output Devices
- Computer Software
- Flowchart and Computer Languages
- System Implementation
- Operating Systems
- Application Software Packages
- Business Data Processing
- Communications and Networks
- Internet Concepts and IoT
- Multimedia and File Extensions
- Classification of Computers
- Cyber Safety and Cyber Crime
- Computer Viruses and Security
- Basic Computer Shortcut Keys
- Shortcut Keys for Windows
- Shortcut Keys for MS Excel
- Shortcut Keys for MS Word
- Computer Abbreviations Set 1
- Computer Abbreviations Set 2
- Computer Abbreviations Set 3
Get free Text Content Tools, Website Management Tools, Development Tools, Binary Converter Tools, Unit Converter Tools and SEO Tools on EuWebTools.