- ABM
asynchronous balanced mode
- ACD
access control definition
- ACU
automatic calling unit
- AL
account librarian capability
- ALU
arithmetic logic unit
- AM
account manager capability
- ANSI
American National Standards Institute
- AP
access port
- ARF
access rights field
- ARM
asynchronous response mode
- ASC
asynchronous serial communications
- ASCII
American Standard Code for Information Interchange
- ATP
advanced terminal processor
- AUI
attachment unit interface
- BA
batch access capability
- BASIC
Beginners All-purpose Symbolic Instruction Code
- BCD
binary coded decimal
- bop
bit-oriented protocol
- BOT
beginning of tape
- BPI
bytes per inch
- bpi
bits per inch
- bps
bits per second
- BSC
binary synchronous communication
- CA
CIO adapter
- CCITT
Comite Consultatif International Telephonique Telegraphique
- CCTL
carriage control
- CE
customer engineer
- CI
command interpreter
- CIB
channel I/O buses
- CIO
channel I/O
- CISC
complex instruction set computer
- CM
compatibility mode
- COBOL
common business-oriented language
- cpi
characters per inch
- CPU
central processing unit
- CRC
cyclic redundancy check
- CRT
cathode ray tube
- CS
communications subsystems capability
- CS/80 or CS-80
command set '80 protocol
- CST
code segment table
- CSTX or XCST
extended code segment table
- CTB
central bus
- CV
create volume capability
- DAT
dump analysis tool
- DB
database
- DBE
DBEnvironment
- DBMS
database management system
- DCE
data circuit-terminating equipment
- DI
diagnostician capability
- DMA
direct memory access
- DMI
digital multiplexed interface
- DPAN
dump analysis program
- DRT
device reference table
- DS
extra data segment capability or distributed system line
- DSM
diagnostic support monitor
- DSN
distributed systems network
- DST
data segment table
- DTC
Datacommunications and Terminal Controller
- DTE
data terminal equipment
- DTS
data communications and subsystem terminal
- DUI
diagnostic user interface
- DUS
diagnostic utility system
- EBCDIC
extended binary coded decimal interchange code
- ECC
error checking code
- EIA
Electronics Industries Association
- EIM
external interrupt message
- EOF
end-of-file
- EOL
end-of-line
- EOF
end-of-tape
- EPROM
erasable programmable read-only memory
- ESD
electrostatic discharge
- EU
execution unit
- FCS
frame checking sequence
- FID
file information display
- FLOPS
floating-point operations per second
- FORTRAN
FORmula TRANslator
- FOS
Fundamental Operating Software
- FRU
field replaceable unit
- GL
group librarian capability
- HDLC
high-level data-link control
- HP
Hewlett-Packard
- HP-DLC-II
Hewlett-Packard Data-Link Control II
- HP-GL
Hewlett-Packard Graphics Language
- HP-IB
Hewlett-Packard Interface Bus
- HP-PA
Hewlett-Packard Precision Architecture
- HP-UX
Hewlett-Packard implementation of UNIX
- IA
interactive access capability
- IAR
interrupt address register
- IC
integrated circuit
- IIR
interrupt instruction register
- IMF
interactive mainframe facility
- INP
intelligent network processor
- INTEREX
International Association of Hewlett-Packard Computer Users
- I/O
input/output
- IODC
I/O-dependent code
- IP
internetwork protocol
- IPC
interprocess communication
- IPSW
interrupt processor status word
- ISL
initial system loader
- ISO
International Standards Organization
- ISR
interruption space register
- IVA
interrupt vector address
- JCW
job control word
- K
kilo
- KSAM
Keyed Sequential Access Method
- LAN
local area network
- LANIC
local area network interface controller
- LAP
link access protocol
- LAP-B
link access protocol-balanced
- LDEV
logical device
- LIF
logical interchange format
- LU
logic unit
- MAU
media attachment unit
- MIPS
million instructions per second
- MIS
management information systems
- MIT
master installation tape
- MODEM
modulator/demodulator
- MPE
multiprogramming executive
- MPE/iX
multiprogramming executive with integrated POSIX
- MR
multiple RIN capability
- MRJE
multileaving remote job entry
- MTBFF
mean time between failure
- MTTR
mean time to recovery
- MUX
multiplexer
- NA
network administrator capability
- ND
nonshareable device capability
- NetIPC
network interprocess communication
- NLS
native language support
- NFT
network file transfer
- NM
native mode or node manager capability
- NRJE
network remote job entry
- NS
network services
- OEM
original equipment manufacturer
- OP
system supervisor capability
- OSI
Open Systems Interconnection
- PAD
packet assembly and disassembly
- PBX
private branch exchange
- PC
personal computer or program counter
- PCA
printed circuit assembly
- PCB
process control block
- PCR
parent-child relationship
- PDC
processor dependent code
- PDN
public data network
- PH
process handling capability
- PIN
process identification number
- PM
privileged mode capability or preventive maintenance
- PROM
progammable read-only memory
- PS
programmatic sessions capability
- PSW
processor status word
- PTOP
program-to-program communications
- PU
physical unit
- RAM
random access memory
- RCS
Response Center Support
- RIN
resource identification number
- RIO
relative I/O
- RlSC
reduced instruction set computer
- RJE
remote job entry
- ROM
read-only memory
- RPG
report program generator
- SCSI
small computer system interface
- SDF
software dump facility
- SDLC
synchronous data link control
- SF
save file capability
- SL
segmented library
- SM
system manager capability
- SMT
system measurement tools
- SNA
systems network architecture
- SPL
System Programmming Language
- SPOOL
simultaneous peripheral operations online
- SQL
Structured Query Language
- SSCP
system services control point
- SYSGEN
system generator
- TDP/V
Text and Document Processor
- TLB
translation lookaside buffer
- UDC
user defined command
- USASCII
American Standard Code for Information Exchange
- UV
use volumes capability
- VAN
value added network
- VINIT
volume initialization subsystem
- VLSI
very large scale integrated circuit technology
- VOLUTIl
volume utility
- VSIT
volume set information table
- VT
virtual terminal
- XCST or CSTX
extended code segment table
