Xerox 701P21091 manual

Glossary

background job Low-priority job, usually batched, that is executed automatically as system resources become available.

batch processing Allows for repetitive operations to be performed sequentially on batched data without much involvement of the computer operator.

BCD binary coded decimal

binary Numbering system based on 2 that uses only the symbols 0 and

1.Binary is used in computers and related devices since information can be represented with electric pulses (0=off, 1=on). Most computer calculations are binary.

binary digit (bit) In the binary numbering system, either of the characters 0 or 1. The “bit” is the base unit of information used by computers. It can take the form of a magnetized spot, an electric pulse, or a positive or negative charge. A sequentially stored set of bits represents a character on a computer.

Multipliers are:

1 or 0 byte = 8,192 bits

kilobyte (KB) or 1,024 bytes = 8,388,608 bits.

Computer space equivalents are:

1.5 KB = about 1 single-spaced typed page

30 KB = about 20 typed pages

150 KB = about 100 typed pages

bit Abbreviation for binary digit, the smallest unit of information recognized by a computer. See also binary digit.

bit map Visual representation of graphic images in which a bit defines a picture element (pixel); for example, if a bit is 1, the corresponding pixel is printed.

blocking Process of combining two or more records into a single block of data which can then be moved, operated upon, or stored, as a single unit by the computer.

block length Number of characters or bytes contained in a block of data (the block is treated as a unit within the computer). Block length is usually invariable within a system and may be specified in units such as records, words, computer words, or characters.

BOF bottom of form

BOT beginning of tape

bpi bits per inch

Glossary-2 Using LCDS Print Description Language