ICT Word Scramble
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Term | Definition |
Hardware: | is any physical part of a computer (it is a group of machines ) |
Hardware is made up of : | a) The CPU and Main Memory b) Input Devices c) Output Devices d) Storage Devices |
Main Memory: | stores programmes and data for processing. |
CPU: | central processing unit. it is like the brain of the computer. |
Input devices: | these devices read incoming data and pass it on to the CPU. Examples are : keyboard ,disk drive ,scanner ,bar code reader , voice recognition , and digital camera. |
Output devices: | these accept information from the CPU and display the results for the user. Examples are: printer, monitor. |
Storages devices : | these keep information and instructions in the computer so that they can be used again. Examples are : CD’s, floppy disks, hard drive. |
Mouse : | Used to select text, insert text or an icon on page by clicking and dragging. The cursor changes shape depending on the task. E.g arrow, beam, egg timer shapes. |
Keyboard : | Used to type words on the page. The most common type is a QWERTY keyboard; it is laid out in an ‘unfriendly’ manner, in order to slow down speed typists. The most commonly used letters are spaced out to avoid them sticking. |
Bar code reader/wand reader or scanner: | They read or scan the zebra like bars that you see on most products. The black and white bars are different widths and together they form a code called a UPU or Universal product code. |
point for sale : | they are used to collect information on a product by scanning the bar code. |
digitiser : | used for drawing illustations or creating graphics/pictures on a page. |
VDE/Voice Data Entry : | it can accept human speech and convert it to the spoken word onto your screen. |
Camera/Tape Recorder : | used to input voice or visual pictures on to your computer. |
OCR : | Optical Character Reader. they are devices that scan the document and turn it into readable form on your screen. |
MICR : | Magnetic Ink Character Reader.they are used when documents, contain magnetic digits that contain information. |
OMR : | Optical Mark Recognition/Reader.The computer will pick up marks, e.g. pencil marks on a sheet to collect information. |
Touch screen : | it is a special screen which alolows you to carry out a task by touching on the screen. |
Light Pen or Stylus : | you can use a special pen to touch the |
Created by:
joannemurtagh10
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