Input /Output Devices Questions and Answers

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.

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.

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.

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.

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.

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.

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.

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.

Answer: D

Correct answer: Writing tablet

A writing tablet, or graphics tablet, senses the position of a stylus on its surface, so it captures both the character being written and where on the surface it was written - the coded character and the positional coordinates the question asks for.

Answer: C

Correct answer: Printer

A hard copy is output on paper, and the printer is the device that produces it. A CRT or console shows output on a screen, which is soft copy, and a card reader is an input device.