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.
Q1. Which of the following input devices is used to enter text and numerical data into a computer system?
a) Mouse
b) Scanner
c) Printer
d) Keyboard
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Correct Answer: d) Keyboard
Explanation: A keyboard is a basic input device used to enter text and numerical data into a computer system. It has different sets of keys for letters, numbers, characters, and functions. Keyboards are connected to a computer through USB or a Bluetooth device for wireless communication.
Q2. Which of the following is not a pointing device?
a) Mouse
b) Joystick
c) Light pen
d) Digitizer
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Correct Answer: d) Digitizer
Explanation: A digitizer is an input device that converts analog information into a digital form. Pointing devices, such as a mouse, joystick, and light pen, are used to control the position of the cursor or pointer on a display screen.
Q3. Which input device is used for video games, flight simulators, training simulators, and controlling industrial robots?
a) Mouse
b) Light pen
c) Joystick
d) Keyboard
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Correct Answer: c) Joystick
Explanation: A joystick is an input device used for video games, flight simulators, training simulators, and controlling industrial robots. It is made up of a stick with a spherical base, allowing free movement of the stick.
Q4. Which of the following input devices enables direct data entry into a computer system from source documents?
a) Data Scanning Devices
b) Keyboards
c) Pointing Devices
d) Voice Recognition Devices
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Correct Answer: a) Data Scanning Devices
Explanation: Data scanning devices, such as scanners, Optical Character Recognition (OCR) devices, and Magnetic Ink Character Recognition (MICR) devices, enable direct data entry into a computer system from source documents. These devices capture data from physical documents and convert it into a digital format that can be processed and stored by a computer.
Q5. What is the primary function of a touch screen?
a) To display visual output
b) To provide a graphical user interface
c) To allow direct interaction with a computer system through touch
d) To capture images and convert them into digital format
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Correct Answer: c) To allow direct interaction with a computer system through touch
Explanation: The primary function of a touch screen is to allow direct interaction with a computer system through touch. Touch screens are input devices that enable users to interact with a computer by touching the screen, eliminating the need for a separate keyboard or mouse.
Q6. Which of the following devices is used to read barcodes?
a) OCR
b) MICR
c) Barcode Reader
d) OMR
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Correct Answer: c) Barcode Reader
Explanation: A barcode reader is an input device used to read barcodes. It scans the barcode and converts the information encoded in the barcode into a digital format that can be processed and stored by a computer.
Q7. What is the primary function of a digitizer?
a) To convert analog information into digital form
b) To control the position of the cursor on a display screen
c) To capture images and convert them into digital format
d) To recognize and interpret human speech
Show Answer
Correct Answer: a) To convert analog information into digital form
Explanation: The primary function of a digitizer is to convert analog information into digital form. Digitizers are used in various applications, such as converting hand-drawn sketches or maps into digital images, capturing signatures, and creating 3D models from physical objects.
Q8. Which of the following input devices is used to recognize and interpret human speech?
a) OCR
b) MICR
c) Barcode Reader
d) Speech Recognition Devices
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Correct Answer: d) Speech Recognition Devices
Explanation: Speech recognition devices are input devices used to recognize and interpret human speech. These devices use algorithms and artificial intelligence to convert spoken words into digital data that can be processed and stored by a computer.
Q9. What is the primary function of an image scanner?
a) To display visual output
b) To provide a graphical user interface
c) To capture images and convert them into digital format
d) To recognize and interpret human speech
Show Answer
Correct Answer: c) To capture images and convert them into digital format
Explanation: The primary function of an image scanner is to capture images and convert them into digital format. Scanners use sensors and light sources to capture the details of an image, such as photographs or documents, and convert them into a digital format that can be processed and stored by a computer.
Q10. Which of the following input devices is used to control the position of the cursor or pointer on a display screen?
a) Keyboard
b) Mouse
c) Scanner
d) Printer
Show Answer
Correct Answer: b) Mouse
Explanation: A mouse is a pointing input device used to control the position of the cursor or pointer on a display screen. By moving the mouse on a flat surface, users can control the coordinates and movement of the on-screen cursor or pointer.
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
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