IGCSE Information & Communication Technology Paper-1: Specimen Questions with Answers 34 - 34 of 46

Question 34

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Appeared in Year: 2009

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Short Answer▾

Name the following devices using the words from the list

Devices using words list

Devices Using Words List

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Table of the Devices using words list
Bar codeChipDVD ROMFlash memory
Graphics tabletLight penMagnetic ink charactersMagnetic stripe
Optical marksOptically read charactersPlotterRemote control

Explanation

A – Light pen

B – Barcode

C – Graphics Tablet

D – Flash memory

  • Light pen: A light pen is a light-sensitive computer input device, basically a stylus that is used to select text, draw pictures and interact with user interface elements on a computer screen or monitor.
  • The light pen works well with CRT monitors because of the way such monitors scan the screen, which is one pixel at a time.
  • Barcode: A barcode is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths and spacing’s of parallel lines.
  • Barcodes are now commonly referred to as linear or one-dimensional, can be scanned by special optical scanners called barcode readers.
  • Graphics Tablet: A graphics tablet is a natural input device that converts information from a handheld stylus. The user uses the stylus like a pen, pencil, or paintbrush, pressing its tip on the tablet surface.
  • The device can also be used in replacement of a computer mouse. It is also called a drawing tablet or a pen tablet.
  • Flash Memory: Flash memory is a non-volatile memory chip used for storage and for transferring data between a personal computer (PC) and digital devices.
  • It has the ability to be electronically reprogrammed and erased.
  • It is often found in USB flash drives, MP3 players, digital cameras and solid-state drives.

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