computer science

2. The output might come as visible items on the computer screen, sound and music that you can hear, or printed information on a page.
4. a video camera that can be plugged into your computer.
7. able to create a very crisp, life-like representation of both text and image on the page. These printers usually produce black and white output only, but some high-end color laser printers are available.
9. built-in device that lets you provide the same input.
10. These cables are the same that you use to connect your television and cable box.
14. allow you to communicate these commands and data to the computer.
16. devices that are responsible for providing sound and music output from your computer.
17. a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.
19. These printers use a traveling "head" that moves back and forth on the paper, building text and images by squirting very small spots of ink.
21. each of its keys has only two possible states: on (down) or off (up).
22. an electronic visual display used in just about every type of computer.

1. USB was designed to standardize the connection of computer peripherals to personal computers, both to communicate and to supply power
3. an electronic circuit formed on a small piece of semiconducting material, performing the same function as a larger circuit made from discrete components.
5. a small, thin disc that can hold a high volume of information.
6. A cursor is the arrow or other icon you see that tracks the mouse position.
8. an output device that creates a physical copy of text, documents, or graphics on paper.
11. a semiconductor device used to amplify or switch electronic signals and electrical power.
12. to understand how to use peripherals when they connect.
13. the main form of user input for most desktop and laptop computers.
15. A mouse offers a fast and flexible way to interact with a computer program.
18. These printers are capable of building three-dimensional physical objects designed on a computer.
20. The hardware pieces you can attach to a computer on the outside