| Term | Definition |
| Mainframe computers | Large, powerful computers that are used for centralized storage, processing, and management of very large amounts of data. |
| Microcomputers | Sometimes called a personal computer; used at home or at the office by one person; can fit on top or under a desk. |
| Minicomputers | Type of computer that is designed to serve multiple users and process significant amounts of data; larger than a microcomputer, but smaller than a mainframe. |
| Notebook/laptop | Similar to a microcomputer; however, it is smaller and portable. |
| PDA;Personal Digital Assistant | Also called a palm-top computer; a small, portable type of computer. |
| Supercomputers | Largest and fastest computers, capable of storing and processing tremendous volumes of data. |