| A | B |
| Application Software | Software designed to meet the user's need; performs a specific task. |
| CD-ROM | A compact disk that reads only memory |
| Computer | An electronic device that receives data, processes data, stores data, and produces a result. |
| Control Unit | The part of the computer that directs instructions. |
| CPU | Central Processing Unit; The brain of the computer |
| Data | New facts entered into the computer to be processed, which consist of text, numbers, sounds, and images. |
| Desktop Computer | Designed to be used on a desktop. |
| Disk | A storage device. |
| Dot Matrix Printer | Uses a pattern of dots to form words and images on paper. |
| Ergonomics | The science of designing equipment and workspace for a comfortable and safe working environment. |
| File | A document stored on a disk. |
| File Server | The central computer where the data software for local area network computers are stored. |
| Hard Copy | A printed copy of output. |
| Hard Disk / Drive | A device that holds information such as software and files. |
| Hardware | Physical parts of a computer. |
| Information Processing Cycle | The 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 | The processing of entering information into a computer. |
| IPOS | Input, Processing, Output, Storage. |
| Keyboard | Contains numbers, letters, symbols, and function keys; looks like a typewriter. |
| Laptop Computer | Designed to be small enough and light enough to be used on your lap. |
| Laser Printer | Uses light beams to form words and images on paper. |
| Local Area Network (LAN) | Computer connected together in a relatively close location such as in the same building or department. |
| Channel | The media that carries or transports the message. (Telephone wire, coaxial cable, microwave signal, or fiber optic) |