3211	A data stream for IBM line printers that typically contains EBCDIC text characters and control characters.
37x5	Represents the series of IBM FEPs, such as 3705, 3725, 3745, etc.

AFP	Advanced Function Printing (IBM)
AFPDS	Advanced Function Printing Data Stream (IBM)
ANSI	American National Standards Institute
APA	All Points Addressability
ASCII	American Standard Code for Information Interchange
AT	Advanced Technology

BIOS	Basic Input/Output System
BPIA	Buffered Parallel Input Adapter
BSD	Berkeley Software Distribution
BUS/TAG	An interface between mainframe computers and peripherals consisting of two physical connections. The BUS connection carries data signals (for example, numbers, characters, and status information). The TAG connection carries control signals to synchronize communication between the host and a peripheral device.

carriage control	Commands that control carriage return (go to the beginning of the line) and line feed (go to the next line).
CCR	Code Conversion RAM
CCW	Channel Command Word
centralized printer	A high-volume printer that is generally channel-attached (but sometimes remotely attached) to a host, supporting line mode, DJDE, and Metacode data streams.
channel	A means for exchanging information. In mainframe terms, a communications link to external devices.
cluster	A group of printer feed trays, usually containing the same size and type of paper.
CME	Copy Modification Entry (Xerox)
CMYK	Cyan, Magenta, Yellow, Black (color system)
code page	A font library member name associating code points and character names.
concatenate	To link objects (such as files or characters) together sequentially.
configuration	Components that make up a system.
connectivity	A state that allows transfer of electrical signals from source to destination.
COR	Computer Output Reduction (AS/400)
CR	Carriage Return
crash	A breakdown resulting from hardware or software malfunction.

DDI	Dynamic Document Interface (Xerox)
DDML	Digital Document Markup Language is a schema language for XML documents.
default	A predetermined option the system uses if the user does not specify an option.
demand publishing	The publication of only the required quantity at a given time; immediate production of a document stored in electronic form.
disk cache	A memory location used to store frequently accessed data.
disk-interleaved graphics	A method of conveying graphics to a printer. The image information is included in the data stream for the page on which it will be printed. In this method, the image data is not processed by the input task of the printer. Instead, it goes directly to the output task of the printer. Xerox refers to these as D-mode images. See page-interleaved graphics.
dithering	Creates the illusion of varying shades of gray tones (in black and white printing) or color tones by manipulating the pattern of dots that are printed.
DJDE	Dynamic Job Descriptor Entry (Xerox)
DLL	Dynamic Link Library
DMA	Direct Memory Access
domain	A text string that helps users to identify computer systems.
dot	Represents a fraction of an inch (as in 300 dots per inch). Also used in place of pel or pixel to represent the smallest printable unit.
dott	The value (in pixels) that represents a position on the laser scan axis of a sheet of paper. See scan.
DPI	Dots Per Inch
DRAIN	A command on a Xerox printer that causes the printing of the pages in the printer's memory buffer. It is used to print smaller jobs immediately, instead of waiting for the memory timeout to start printing.
D-shell connector	A cabling component, shaped somewhat like a capital letter D, that houses mating contacts for a connector on the PC or another device.
duplex	Printing on both sides of paper in one print job.

EBCDIC	Extended Binary Coded Decimal Interchange Code
EPS	Encapsulated PostScript
escapement	The lateral positioning of characters or font families.
ESS	Electronic Subsystem (Xerox system controller)
exception	A problem that causes processing to stop. Usually, an exception causes the computer to use a different routine to address the problem.

FCB	Forms Control Buffer (Xerox)
FCFC	First Character Form Control
FCU	File Conversion Utility
FEP	Front End Processor
FIB	A filename extension denoting a special font information file for Twinax Laser Printer emulation.
FIB	Font Information Block
FIFO	First In First Out
FLR	Fixed-Length Record
FNT	Font (Xerox)
FNT	A compiled Xerox font resource file.
font	A set of printing characters that have common characteristics such as style, width, height, and weight.
form	An electronically composed arrangement of predefined lines, boxes, text, logos, and embedded text that may be printed as is or merged with data during the printing process.
FRM	A compiled Xerox form resource file.
FRM	Form (Xerox)
FSL	Forms Source Library (Xerox)
FTP	File Transfer Protocol

GB	Gigabyte
GFID	Global Font ID (also FGID)
GHO	Graphics Handling Option
graceful default	A feature of a printer that ignores commands it does not support.
GUI	Graphical User Interface

hang	When a computer or printer stops responding.
HPGL	Hewlett-Packard Graphics Language

IJPDS	Ink Jet Print Description Language is an ink jet print format for Kodak digital printers
I/O	Input/Output
IMG	Image (Xerox)
IMG	A compiled Xerox image resource file.
IPDS	Intelligent Print Data Stream (IBM)
IPX/SPX	A Novell NetWare communications protocol.
ISA	Industry Standard Architecture
ISO	International Organization for Standardization

JCL	Job Control Language (IBM)
JDE	Job Descriptor Entry (Xerox)
JDF	Job Definition Format is a comprehensive XML-based file format/proposed industry standard for end-to-end job ticket specifications combined with a message description standard and message interchange protocol.
JDL	Job Descriptor Library (Xerox)
JES	Job Entry Subsystem (mainframe)
job	A set of instruction for a unit of work; everything that is printed because of one start command.
JSL	Job Source Library (Xerox)
jumper	A small, removable plastic cap on connector pins that acts as a switch: On is indicated when the jumper covers both pins; Off is indicated when the jumper covers only one of the pins (or is completely removed).

KB	Kilobyte
KSL	Key Source Library

LAN	Local Area Network
LCDS	Line Conditioned Data Stream
LEF	Long-Edge Feed
legacy	Refers to data or documents in an older format.
LF	Line Feed
LGO	Logo (Xerox)
LIFO	Last In First Out
lpd	Line Printer Daemon
lpd	A service on Unix systems that provides for line printing tasks.
lpr	Line Printer Requested
lpr	An Internet remote line printer command.
LPS	Laser Printing System (Xerox)
LSB	Least Significant Byte
LU	Logical Unit (mainframe)

MB	Megabyte
Metacode	A Xerox-generated data stream that provides all-points-addressability on Xerox centralized printing systems. Metacode contains text, graphics, special commands, and Xerox Dynamic Job Descriptor Entries (DJDEs).
MFC	Multi Function Center is the name given to converged devices that can do printing, scanning, faxing and copying. These devices are often dependent on a computer to provide these functions.
MICR	Magnetic Ink Character Recognition
monospace font	A font (like the fonts used on typewriters) in which each character has the same width.
MSB	Most Significant Byte
MSD	Microsoft Diagnostic
MVS	Multiple Virtual Storage (mainframe)

NCP	Network Control Program
NDIS	Network Driver Interface System
NDS	NetWare Directory Services (Novell)
NIC	Network Interface Card
NPS	Network Printer System

OCR	Optical Character Recognition
ODI	Object Device Interface
OfficeVision	An IBM AS/400 software application used mainly for word processing.
offline	Describes devices not under the control of a CPU (e.g. a tape drive or SDI unit).
online	Describes devices under the control of a CPU (e.g. a printer being run by a mainframe).
OS	Operating System

page-interleaved graphics	A method of conveying graphics to a printer. The image information is included in the data stream for the page on which it will be printed. In this method, the image data is processed by the input task of the printer. See disk-interleaved graphics.
parity error	An error detected when the parity (the number of zeros and ones in binary data) of transmitted or stored data is compared with the parity of the source data. This error indicates corrupt data.
partition	A discrete section of memory that works like an independent memory unit.
patch	A small amount of computer code to fix a problem in a version of an operating system or program.
path	A group of SP/D modules that take data from an input, convert it into an appropriate format, and send it to an output device.
PC	Personal Computer
PCC	Printer Carriage Control
PCI	Peripheral Component Interconnect
PCL	Printer Control Language (Hewlett-Packard)
PDD	Page Device Dictionary (PostScript)
PDE	Print Descriptor Entry (Xerox)
PDF	Portable Document Format (Adobe)
PDF/A	Electronic document file format for long term preservation or archiving.
PDL	Page Description Language
ping	A command that sends an echo request to a host with the expectation of a reply.
pitch	Horizontal character spacing.
pixel	The smallest mark that can be printed.
PJL	Printer Job Language (Hewlett-Packard)
platen	The cylindrical paper roller on an impact printer.
PostScript	An Adobe graphic page description language used for desktop publishing applications.
PPD	PostScript Printer Description file
PPML	Personalized Print Markup Language is an XML-based industry standard printer language for variable data printing. PPML is an open, interoperable, device-independent standard designed to enable the widespread use of personalized print applications.
PSF	Print Services Facility (mainframe)
PTF	Program Temporary Fix (AS/400)
PU	Physical Unit (mainframe)

queue

An ordered list of jobs or reports waiting to be printed or spooled.

RAM	Random Access Memory
raster	An image described on a dot-by-dot basis.
record	One line of data on a page; a collection of data treated as a unit.
RGB	Red, Green, Blue (color system)
rollover	A condition where the operating system of the printer has stopped running and the printer needs to be re-booted.
RSTACK	A special record that a Xerox printer uses to identify the end of a report or print job.

scan	The value (in pixels) that represents a position on the paper motion axis of a sheet of paper. See dott.
SCI	Start Command Index (Xerox)
SCS	SNA Character Stream
SCSI	Small Computer System Interface
SDI	Shared Disk Interface (Xerox)
SEF	Short-Edge Feed
service	A background application that supports other programs at a low level.
SNA	System Network Architecture
softfont	A font embedded in print data.
SP/D	Solimar® Print/Director
SPDE	Solimar® Print Director™ Enterprise
SRxSHELL	A previous version of the Solimar® Print/Director System.
SSP	Set Start Point

target	A route of one or more SP/D paths to manage print jobs for one output device.
TCP/IP	Transmission Control Protocol/Internet Protocol
Tee Cable	A cable that allows several devices to connect to the same interface (daisy-chained). The cable commonly has a stub that connects to a PC or other device, and another component that links cable segments between devices.
TIFF	Tagged Image File Format
TLE	A tag logical llement structured field assigns an attribute name and an attribute value to a page or page group.
Tumble-Duplex	A method of printing where the duplex-side of a page is printed from bottom to top rather than top to bottom.
Twinax	A fast, reliable, and inexpensive cabling system.
two-up	Two logical pages printed on one side of a single sheet.
typographic font	An AS/400 proportional font.

UPS	Uninterruptible Power Supply
USS	Unformatted Systems Services

Variable Block Record	A data format. Within each block of data there may be several records. Each record has a four byte header defining its length. Also, the entire block has a header defining the block's length.
Variable Length Record	A data format similar to Variable Block Record, except that it has no header defining block length. Also called Variable Record.
VBR	Variable Block Record
VGA	Video Graphics Adapter
VLR	Variable Length Record (also called Variable Record)
VTAM	Virtual Telecommunications Access Method (mainframe)

WAN	Wide Area Network
watermark	A design impressed on paper to indicate quality or trademark.
WCS	Writable Control Storage

XDPE	Xerox Document Print Executive