OCR A Level Computer Science
1.1.3a: How different input, output and storage devices can be applied to the solution of different problems.
1.1.3a: How different input, output and storage devices can be applied to the solution of different problems.
| Keyword | Definition |
|---|---|
| Barcode reader | Input device which can detect and interpret data represented graphically as black and white lines or dots |
| CCD | type of image sensor which can reproduce high quality digital images |
| CMOS | type of image sensor which can detect light without consuming much power |
| Input device | hardware which sends data into a computer (e.g. scanner, webcam, keyboard, mouse) |
| Output device | hardware which receives data from a computer so that it can be presented to a user (e.g. printer, display, sound card) |
| Storage device | hardware used to keep a copy of data on a non volatile medium (e.g. magnetic, optical or flash) |
