Abbreviation

Full name

Explanation

 

 

 

PPR

Page Printer Requester

Enhanced version of

 

 

LPR/LPD. The

 

 

enhancement enables bi-

 

 

directional

 

 

communication when

 

 

printing. Not part of the

 

 

standard TCP/IP stack

 

 

(programs). Used by ida

 

 

PSS, ida HPR and PSF.

 

 

Works only in conjunction

 

 

with PPR. The sender of a

 

 

print job via TCP/IP will

 

 

be PPR and the receiver

 

 

will be PPD.

 

 

 

PSF

Print Service Facility

IBM printer driver for AFP

 

 

printing. Converts line

 

 

data and AFP data to

 

 

IPDS only. PSF/AIX and

 

 

PSF/2 is capable of

 

 

converting the data to

 

 

PCL as well.

 

 

PSS (ida PSS) Print

 

 

Subsystem Print

 

 

system for OS/390 (MVS)

 

 

and VM systems. Prints

 

 

AFP and line data files on

 

 

all remote printers, NOT

 

 

channel attached

 

 

printers.

 

 

 

RAM

Random Access Memory

Memory chip that is able

 

 

to store information while

 

 

powered on. RAM can be

 

 

‘written’ an indefinite

 

 

number of times.

 

 

 

SCS

SNA Character String

Control information for

 

 

simple print formatting

 

 

like e.g. set CPI, LPI and

 

 

Form Feed.

 

 

 

SIMM

Single Inline Memory

 

 

Module

 

 

 

 

SNA

Systems Network

IBM networking concept

 

Architecture

usually for Mainframe and

 

 

AS/400. On mainframes

 

 

the actual program that

 

 

implements SNA is called

 

 

VTAM.

 

 

 

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