monitor

GLOSSARY

monitor: A device that uses rows and columns of pixels to display alphanu- meric characters or graphic images.

See CRT.

motherboard: A name sometimes used to refer to the main printed circuit board in processing equipment. It usu- ally contains integrated circuits that perform the processor’s basic func- tions and provides connectors for add- ing other boards that perform special functions. Sometimes called a main board.

MPEG: Moving picture coding expert group is an industry standard architec- ture for compression of video signals.

N

non-system disk: A formatted diskette (floppy disk) you can use to store pro- grams and data but you cannot use to start the computer. See system disk.

nonvolatile memory: Memory, usu- ally read-only (ROM), that is capable of permanently storing information.

Turning the computer’s power off does not alter data stored in nonvolatile memory.

numeric keypad overlay: A feature that allows you to use certain keys on the keyboard to perform numeric entry, or to control cursor and page move- ment.

O

OCR: Optical Character Recognition (reader). A technique or device that uses laser or visible light to identify characters and input them into a stor- age device.

OCR wand: A device that reads, using an optical device, hand written or machine printed symbols into a com- puter. See also OCR.

on-line state: A functional state of a peripheral device when it is ready to receive or transmit data.

operating system: A group of pro- grams that controls the basic operation of a computer. Operating system func- tions include interpreting programs, creating data files, and controlling the transmission and receipt (input/output) of data to and from memory and peripheral devices.

output: The results of a computer operation. Output commonly indicates data 1) printed on paper, 2) displayed at a terminal, 3) sent through the serial port of internal modem, or 4) stored on some magnetic media.

P

parallel: Refers to two or more pro- cesses or events that can occur simul- taneously, and without interfering with each other. See also serial.

parallel interface: Refers to a type of information exchange that transmits information one byte (8 bits) at a time. See also serial interface.

Glossary-10

User’s Manual

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Toshiba a210 user manual Monitor