| A | B |
|---|
| CD ROM | Compact disk that reads only memory |
| CPU | Central processsing unit; Brain of the computer |
| Control unit | Part of the computer that directs instruction |
| Disk | Storage device |
| Disk drive | Device that reads and writes on a disk |
| Dot matrix printer | Uses a pattern of dots to form words and images on paper |
| File | Document stored on a disk |
| Hard copy | Printed copy of output |
| Hard drive | Device that holds files; also called hard disk |
| Information processing cycle | Interactions of humans and computers that consist of input, processing, output, and storage |
| Inkjet printer | Sprays ink through small holes to form words and images on paper |
| Input | Process of entering information into the computer |
| Keyboard | Input device that looks like a typewriter |
| Laser printer | Uses light beams to form words and images on paper |
| Modem | Modulator-demodulator; Device that connects a computer to a telephone or cable line |
| Output | Displays the results of processing |
| Plotter | Device that draws images with pens |
| Processing | Executes instructions given to the computer |
| RAM | Random access memory; Temporary storage |
| ROM | Read only memory; Permanent storage |
| Scanner | Input device that makes copies like a photocopier |
| Service technician | One who repairs hardware and software problems |
| Soft copy | Output that is not in printed form |
| Software | Programs that tell the computer what to do |
| Storage | Device that holds data |
| Virus protector | Program that protects a computer from damage |
