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I.C.T
General Theory Notes
| Question | Answer |
|---|---|
| Mouse: | Used to select text, insert text or an icon on a 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 out in an unfriendly, manner, in order to show down speed typists. The most commonly used letters are spaced out to avoid them sticking. |
| Bar code:: Reader/wand resder | 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 UPC or universal product code. |
| Point of sale Termainal: | They are used to collect information on a product of scanning the bar code. They record and store informatione.g. its price, country of origin, and they record the sale and produce a recipet/slip for the customer. |
| Digitiser: | Used for drawing illustrations or creating graphics/pictures on a page. |
| Camera/tape Recorer: | Used to input voice or visual pictures on your computer. |
| VDE/Voice Data entry : | It can accept human speech and convert it to the spoken word onto your screen. |
| OCR/Optical Character reader (optical scanner): | They are devices that scan the document and turn it in to readable form on your screen. It can be text, graphics or photo materal The results can be cut copied and pasted, then saved to a disk. |
| MICR/Magnetic ink Character reader: | They are used when documents , contain magnetic ,contain magnetic digits that contain information E:g. flat numbers on the bottom of a blank cheque that represents information about a customer account. |
| OMR/Optical mark Recognition/reader: | The computer will pick up marks e:g. pencil marks ona sheet to collect information. E.g. pencil marks on a score sheet. |
| Touch screen: | it is a spechel screen which allows you to carry out task by touching on screen. |
| light pen or stylus: | you can touch the touch screen; it can be used to highlight and select items. you can also makehand written entries. |
| monitor/VDU Or visual display unit: | This is the screen that u look at ; it contains a soft copy of your information |
Created by:
sophiedeegan10
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