Input and Output devices.

4. another word for controller
6. hat lets you see and hear a virtual 3D world created by the computer.
9. you use this to create words
10. that can read marks made on paper, usually with a pencil or pen.
11. this is used to draw with detail on them
12. this is used in supermarkets to scan items
13. this is used by blind person's for creating text
15. special type of input device that reads characters (letters or numbers) printed in magnetic ink.
16. prints large drawings or designs very accurately.
18. let a single person listen to sound from the computer privately.
21. this lets us hear sound from the computer.
22. takes information from the computer (like text, images, or videos) and shows it on a big screen or wall.

1. this is used by person's that can only move their eyes
2. turns 3D physical things into digital ones
3. creates three-dimensional objects instead of just printing on paper.
5. this is used to talk and record yourself on a computer
7. you find this on a laptop
8. shows information from the computer on a screen.
14. sensor that is built or designed to measure just one specific thing
17. used with one hand, has a pointer
19. turns physical things into digital ones
20. takes information from the computer and produces a hard copy (something you can touch on paper).