Toshiba 8000 Tecra 8000 Users Guide - Page 273

249 Glossary M macro: A named sequence of instructions within a programming language or application. A macro may be predefined in the language or application, or you may define your own macros for procedures you use frequently. The macro name enables you to call up the sequence of instructions when you need them. main board: See motherboard. math coprocessor: A special processor that performs arithmetic calculations on exponential numbers. Since a computer's main processor calculates with integers, a math coprocessor can greatly improve system speed if you work with large spreadsheets or some graphics programs. Some processor chips include a built-in math coprocessor. megabyte (MB): A unit of data storage equal to 1024 KB. Although mega means million, one megabyte is actually 1,048,576 bytes (1024 x 1024 bytes). memory:1) The integrated circuits (chips) inside the computer that store information. The computer uses memory to run programs and temporarily store data. There are various types of memory. 2) A synonym for Random Access Memory (RAM). See Random Access Memory and Read-Only Memory. menu: A list of options on the screen, from which you can make a selection. microphone: An input device that converts sound into electronic signals for transmission and/or recording. microprocessor: A single integrated circuit ("chip") that executes instructions and monitors and controls functions. One such chip forms the Central Processing Unit (CPU) of your computer. MIDI (Musical Instrument Digital Interface): A standard for connecting musical instruments, synthesizers and computers. It provides a way of translating music into a form that the computer can use, and vice versa. mode: An operational state or method of operation, for example, Resume Mode or Boot Mode. Part III: Appendixes