APPENDIX I
LIST OF ACRONYMS
ACDS— advanced combat direction system.
ACRO. (or CRO)— auxiliary cathode readout.
ALT key— alternate key.
A/N— alphanumeric.
APA— all points addressable.
ASCII— American Standard Code for Information
Interchange.
ASTAB— automated status board.
ASW— antisubmarine warfare.
BDU— basic display unit.
BITE— built-in test equipment.
CAG— central automated status board generator.
CCAEP— computer-controlled action entry panel.
CDB— central data buffer.
C-DITEG— common digital television graphics
generator.
CDS— combat direction system.
CED— console electronic drawer.
CEG— central equipment group.
CGA— color graphics adapter.
CIGARS— console internally generated and
refreshed symbols.
CIU— computer interface unit.
CONICS— ircles and ellipses.
CP— clock pulse.
CPS— cycles per second.
CRO— TV monitor.
CRT— cathode-ray tube.
CTRL— control.
DCC— display control console.
DCI— direct computer interface.
DDEU— digital data entry unit.
DDI— (1) digital data indicator; (2) digital
display indicator.
DITEG— digital television graphics generator.
DMU— display multiplexer unit.
DRAC— digital radar azimuth converter.
DSC— digital scan converter.
EF word— external function word.
EGA— enhanced graphics adapter.
EPROM— erasable, programmable read-only
memory.
ESC key— escape key.
GUI— graphic user interface.
HVPS— high voltage power supply.
HZ— hertz.
I/O— input/output.
IFF/SIF— identification, friend or foe/selective
identification feature.
LCD— liquid crystal display.
LCLV— liquid crystal light valve.
LED indicator— light-emitting diode indicator.
LSD—– large screen display.
LVPS— low voltage power supply.
MDA— monochrome display adapter.
NTDS— naval tactical data system.
ODR— output data request.
OJT— on-the-job training.
OSC— operations summary console.
PA/SG— pulse amplifier/symbol generator.
AI-1
