| A | B |
|---|
| Super computer | the fastest type of computer currently available, it is very expensive an primarily used for "number-crunching |
| Mainframe | a large computer system capable of qicky processing enormous quantities of data |
| Minicomputer | a computer with many of the capabilities of a mainframe , but runs lower, has 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 1s and 0s tha t is used to give instructions to computers. Generally speaking, a 1 is represented by the precense of electrical current while 0 is represented by its absence. |
| Microprocessor | the brain of a computer on a single chip. |
| Notebook computer | a portable computer designed to fit into a briefcase and generally weighting 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 assistant (PDA) | A small portable computer thhat 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 microcomputer, often used by engineers and technical ilustrators. Workstations use RISC technology and often use a U nix operating system. |
| Embedded system | A microprocessor that is built into a piece of electronic equipment,such as a VCR or atomobile . A ny instructions needed by the microprocessor are "hard-coded" into it. |
