Which of the following is NOT an output device?

Question

Question

This question was previously asked in

SSC CHSL Tier-I Exam 2022 Official Paper (Held On: 09 March, 2023 Shift 3)

Answer 1

The correct answer is Option 4.

Key Points

A barcode reader is not an output device.
It is actually an input device, which is used to read and interpret data from barcode labels and transmit that data to a computer or other device.
Barcode readers use optical scanning technology to read the pattern of bars and spaces on a barcode label, which represents a specific code or series of numbers and characters.
This information is then sent to a computer or other device for processing and interpretation.
Output devices, on the other hand, are devices that are used to display or transmit information or data from a computer or other device.
Examples of output devices include computer monitors, printers, speakers, and projectors.

Additional Information

A plotter is a type of output device that is used to print large-scale graphics, designs, and technical drawings.
- Unlike traditional printers, which use ink or toner to create images on paper, plotters use a pen or other marking instrument to draw precise lines and shapes on paper, vinyl, or other materials.
A monitor is an output device that displays visual information from a computer or other electronic device. Also referred to as a computer screen or display screen, a monitor is one of the most important components of a computer system.
A dot matrix printer is a type of impact printer that uses a matrix of small pins to strike an inked ribbon and create an image or text on paper.
- The pins are arranged in a grid, and when the printer head moves across the page, the pins strike the ribbon and transfer ink onto the paper, creating a series of dots that form characters and images.