GLOSSARY
CPU central processing unit. Interprets and executes instructions, performs all operations and calculations, and controls input and output units and auxiliary attachments.
data 1. In general, facts, numbers, letters, symbols, and so on, which can be processed or produced by a computer. 2. In data processing, the source data or raw data entered for processing, as opposed to the results obtained by processing.
database Information to meet specific processing and retrieval needs. Generally applies to integrated file of data, arranged for access by many subsystems.
data communications Transmission and reception of encoded information over telecommunication lines.
data file Collection of related data records organized in a specific manner so that each record is similarly structured, for example, a payroll file set up with one record for each employee, last name first, indicating the rate of pay and all deductions.
data processing Operations carried out on data by means of algorithms and programs to produce information or a specific result. The rearrangement of data into a suitable form for further use.
data rate In data communications, the rate at which a channel carries data, measured in bits per second (bps).
data storage Preservation of data on various media, for example, tape, disks, magnetic bubble memory, and so on.
data transmission Transmission of coded data over telephone or other telecommunication lines.
debug To detect and correct errors in a program.
decompose To break down into component parts, such as when Interpress breaks down a Font Interchange Standard (FIS) master to compile font information.
default Value assigned to a field by the system. Default fields may be used for such items as document formats, menu selections, input fields, font selection, and paper or image size. The default value of a field may be changed.
descender Portion of alphabetic character that extends below the baseline. See also ascender, x height.
device Any piece of hardware other than the central processing unit (CPU).
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