IGCSE Information & Communication Technology Paper-1: Specimen Questions with Answers 34 - 34 of 45

Question number: 34

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Appeared in Year: 2009

Short Answer Question▾

Write in Short

Name the following devices using the words from the list

Devices using words list

Devices Using Words List

Table of the Devices using words list

Table of the Devices using words list

Bar code

Chip

DVD ROM

Flash memory

Graphics tablet

Light pen

Magnetic ink characters

Magnetic stripe

Optical marks

Optically read characters

Plotter

Remote 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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