Input Devices

5. input a user’s voice into a computer
6. a type of screen where a finger close to screen effect the electric field between the inner and outer glass
8. an injury caused by the repetitive motion and extended use of a device
9. a device that detects some type of input from the physical environment
13. reads a series of dark and light parallel lines of varying thickness
14. it is used to turn on or off a circuit by a low power signal
15. electrically activated valves, typically used to control the flow or direction of air or liquid
17. entering text into a Word or Google document
18. upside-down mouse with an exposed protruding ball
19. an actuator that is powered by compressed air
21. an actuator that is powered by mineral oil or water
22. converts a hard copy document into an electronic form to be stored into the computer

1. a device that makes something move or operate
2. this is used to recognise and display information about a vehicle
3. made up of a matrix of filled-in dark squares on a light background
4. are devices used to put information into and get information out of the computer
7. builds up an image of a solid object through a series of very thin slices
10. converts an analogue signal to digital
11. a type of screen where a push by the finger on the screen completes the circuit of two conducting layers
12. used to scan a solid object and produce a 3D image
16. used to point and select text on a document
18. a display device that allows the user to interact with a computer by using the fingers or stylus
20. tiny element on an image that is made of red, green and blue color