Input /Output Devices Questions and Answers

Q: Which of the following is not an output device ?

The one that is not an output device is the microphone.A microphone converts sound into an electrical signal that the computer records, so it sends data into the computer: it is an input device.The others take data out of the computer in a form people can use. A plotter draws large graphics on paper, headphones produce sound, and a projector displays the screen image on a wall or screen.

Q: Which of the following devices do you recommend most to use if someone wishes to connect a laptop to a classroom smartboard for high-resolution screencast ?

The best choice is HDMI.HDMI (High-Definition Multimedia Interface) carries uncompressed high-resolution digital video and audio over a single cable, which suits casting a laptop's screen to a smartboard or projector in high resolution.VGA is an older analogue video connection with lower quality and no audio. PS/2 is an old port for keyboards and mice, and a standard USB connection is used mainly for data and the smartboard's touch input rather than for high-resolution video.

Q: Keyboard is a type of ___________device?

A keyboard is an input device.Input devices send data and commands into the computer. Pressing a key sends a code for that character or command to the processor. The mouse, scanner, microphone and joystick are other input devices.Output devices, such as the monitor, printer and speakers, present results from the computer. Storage devices, like a hard disk or pen drive, keep data, and memory (RAM and ROM) holds the data and instructions the processor is working on. The keyboard does none of these.

Q: Mouse, joystick and trackball are examples of

They are pointing devices.A mouse, a joystick and a trackball all move a pointer or cursor on the screen and let the user select items by clicking, so they are classed as pointing input devices, along with touchpads and light pens.Scanning devices such as scanners and barcode readers capture images or codes; storage devices such as hard disks hold data; multimedia devices such as speakers and webcams handle sound and video.

Q: The most common method of entering text and numerical data into a computer system is through the use of a ____

Correct answer: KeyboardText and numbers are typed, and the keyboard is the device for typing. A scanner captures an image of a page rather than its characters, and printers and plotters are output devices.

Q: Which of the following produces high-quality output?

Correct answer: Non-impact printerNon-impact printers - laser and inkjet - form characters without striking the paper, so they are quieter and produce far finer detail than impact printers, which press an inked ribbon against the page through a matrix of pins.

Q: Using output devices one can ____

Correct answer: View or print dataOutput devices present results: the monitor displays them and the printer puts them on paper. Entering, storing and scanning are the work of input and storage devices.

Q: The term used to define all input and output devices in a computer system is ___

Correct answer: HardwareHardware is the collective term for the physical parts of a computer, which includes every input and output device. Software is the set of programs, and a monitor is one output device rather than the class.

Q: Devices that let the computer communicate with you.

Correct answer: OutputAn output device is the one that carries information from the computer to the person - the monitor, the printer, the speakers. Input devices carry information the other way.

Which of the following is not an output device ?

A.Plotter
B.Headphone
C.Microphone
D.Projector

Exam Year(s)

CBSE Assistant Secretary - 2024,

Answer: C

The one that is not an output device is the microphone.

A microphone converts sound into an electrical signal that the computer records, so it sends data into the computer: it is an input device.

The others take data out of the computer in a form people can use. A plotter draws large graphics on paper, headphones produce sound, and a projector displays the screen image on a wall or screen.

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Which of the following devices do you recommend most to use if someone wishes to connect a laptop to a classroom smartboard for high-resolution screencast ?

A.PS2
B.VGA
C.USB
D.HDMI

Exam Year(s)

CBSE Assistant Secretary - 2024,

Answer: D

The best choice is HDMI.

HDMI (High-Definition Multimedia Interface) carries uncompressed high-resolution digital video and audio over a single cable, which suits casting a laptop's screen to a smartboard or projector in high resolution.

VGA is an older analogue video connection with lower quality and no audio. PS/2 is an old port for keyboards and mice, and a standard USB connection is used mainly for data and the smartboard's touch input rather than for high-resolution video.

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Which of the following is NOT a digital input device for computers?

A.Digital camcorder
B.Microphone
C.Scanner
D.Printer

Exam Year(s)

DSSSB AE - 2023,

Answer: D

A digital input device sends data into the computer. A digital camcorder, a microphone (through a sound card, which digitises the sound) and a scanner all feed data to the computer and are input devices. A printer takes the output of the computer and puts it on paper, so it is an output device. The answer is the printer, option D.

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Keyboard is a type of ___________device?

A.Output.
B.Input.
C.Storage.
D.Memory.

Exam Year(s)

MP Lab Technician - 2015,

Answer: B

A keyboard is an input device.

Input devices send data and commands into the computer. Pressing a key sends a code for that character or command to the processor. The mouse, scanner, microphone and joystick are other input devices.

Output devices, such as the monitor, printer and speakers, present results from the computer. Storage devices, like a hard disk or pen drive, keep data, and memory (RAM and ROM) holds the data and instructions the processor is working on. The keyboard does none of these.

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Mouse, joystick and trackball are examples of

A.scanning devices
B.storing devices
C.pointing devices
D.multimedia devices

Exam Year(s)

MPPSC Forest Service - 2023,

Answer: C

They are pointing devices.

A mouse, a joystick and a trackball all move a pointer or cursor on the screen and let the user select items by clicking, so they are classed as pointing input devices, along with touchpads and light pens.

Scanning devices such as scanners and barcode readers capture images or codes; storage devices such as hard disks hold data; multimedia devices such as speakers and webcams handle sound and video.

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The most common method of entering text and numerical data into a computer system is through the use of a ____

A.Plotter
B.Scanner
C.Printer
D.Keyboard

Answer: D

Correct answer: Keyboard

Text and numbers are typed, and the keyboard is the device for typing. A scanner captures an image of a page rather than its characters, and printers and plotters are output devices.

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Which of the following produces high-quality output?

A.Impact printer
B.Non-impact printer
C.Plotter
D.Both '1' and '2'

Answer: B

Correct answer: Non-impact printer

Non-impact printers - laser and inkjet - form characters without striking the paper, so they are quieter and produce far finer detail than impact printers, which press an inked ribbon against the page through a matrix of pins.

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Using output devices one can ____

A.Input data
B.Store data
C.Scan data
D.View or print data

Answer: D

Correct answer: View or print data

Output devices present results: the monitor displays them and the printer puts them on paper. Entering, storing and scanning are the work of input and storage devices.

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The term used to define all input and output devices in a computer system is ___

A.Monitor
B.Software
C.Shared resources
D.Hardware

Answer: D

Correct answer: Hardware

Hardware is the collective term for the physical parts of a computer, which includes every input and output device. Software is the set of programs, and a monitor is one output device rather than the class.

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10.

Devices that let the computer communicate with you.

A.Input
B.Output
C.Type
D.Print

Answer: B

Correct answer: Output

An output device is the one that carries information from the computer to the person - the monitor, the printer, the speakers. Input devices carry information the other way.

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