| 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, has less memory, and costs somewhat less |
| microcomputer | a ssmall, relatively inexpensive computer, usually designed to be used by one person at a time. |
| binary code | a sequence of 1s and 0s that is used to give instructions to computers. generally speaking, a 1 is represented by the presence of electrical current (or a switch being on) while a 0 is represented by its absence ( or a switch being off ). |
| microprecessor | the "brain" of a computer on a single chip. |
| notebook computer | a portable computer designed to fir into a briefcase and generally weighing under 10 pounds. the display screen is usually in the notebook's lid. |
| subnotebook computer | similar to notebook computer but smaller; it usually weighs under five pounds. |
| personal digital assistgant (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 microcomputer,often used by engineers and technical illustrators. workstations use RISC technology and often use a Unix operating system. |
| embedded system | a microprecessor 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. |
