Input and output devices

Input and output devices

1. Keyboard - enters text, input comands

2. Touch screen devices - combine the functions of a keyboard with a computer screen.

3. Mice - Travels along a flat surface and enters comands.

4. Joysticks - mostly used for computer games. can move it around in any direction

5. OUTPUT DEVICES

6. Scanners - Used to convert and existing hard copy of a document or object into digital image

7. Digital cameras - Creates a digital image of whatever the camers sees through its lens

8. Microphones - Capsures sound

9. Voice recognition - Used to convert spoken words into text

10. INPUT DEVICES

11. Computer monitor - visual display units. runs the computer

12. Printers - used to create a permenant copy of a document

    • Laser printer - uses elecrical charge
    • Inkjet printer - sprays ink onto a sheet of paper
    • Thermal printer - uses a heater to detect heat and print image
      • Benefits being its cheap and can print large amount of documents with straightfoward documents
      • Drawbacks being doesnt last long
    • Dot-matrix printer - old tech which is being replaced, uses pins and creats dots.
      • Drawbacks being its very noisy and its not designed for colour printing
      • Benefit being low in cost

13. Speakers - displays souns much as music files, radio or soundtracks