| A | B |
|---|
| Supercomputer | The fastest type of computer currently available, it is very expensive and primarily used for "number-crunching" |
| Mainframe | A large computer system capable of quickly processing enormous quantities of data |
| Minicomputer | A computer with many of the capabilities of a mainframe, but runs slower, had less memory, and costs somewhat less |
| Microcomputer | A small, relatively inexpensive computer, usually designed to be used by one person at a time |
| Binary Code | A sequence of 1's and 0's that is used to give instructions to computers. Generally speaking, a 1 is represented by the presence of electrical current (or a switch being turned on) while a 0 is represented by its abscence (or a switch being off) |
| Microprocessor | The "brain" of a computer on a single chip |
| Notebook Computer | A portable computer designed to fit into a briefcase and generally weighing under 10 pounds. The display screen is usually in the notebook's lid |
| Subnotebook Computer | Similar to a notebook computer but smaller; it usually weighs under 5 pounds |
| Personal Digital Assistent (PDA) | A small portable computer that fits into the palm of a hand. A stylus is used to give instructions and choose from lists of options |
| Workstation | A powerful, relatively expensive computer, often used by engineers and technical illustrators. Workstations use RISC technology and often use a Unix operating system |
| Embedded System | A microcomputer that is built into a piece of electronic equipment, such as a VCR or automobile. Any instructions needed by the microprocessor are "hard-coded" into it |
