DEFINITIONS OF FREQUENTLY – USED ACRONYMS

ACE- Asynchronous Communications Element

ALU – Arithmetic Logic Unit

ASCI – American Standard Code for Information Interchange

ADC -Analog to-Digital Converter

BCD – Binary Coded Decimal

BIOS – Basic Input Output System

BIU – Bus interface Unit

BPNF – Begin/positive /Negative/Finish

Brk – Break

CAS – Column Address Strobe”’ -

CCD – Charge Coupled Devices

CE – Chip Enable -

CERDIP – Ceramic Dual-ln-Line Package

CFM – Cubic Feet per Minute

CMOS -Â Complimentary Metal Oxide Semiconductor

CPU – Central Processing Unit

CRT – Cathode Ray Tube

CRTC – CRT Controller

CS – Chip Select

DAC – Digital-to-Anaiog Converter

DCE – Data Communications Equipment

DED – Darkness Emitting Diode

Dl – Data Input

DMA – Direct Memory Access

DO – Data Output

DIE – Data Terminal Equipment

EPROM – Erasable Programmable Read Only Memory

IIL – Integrated injection Logic

1C – Integrated Circuit

I/O – Input/Output

LCDS – Low Cost Development System

LED – Light Emitting Diode

LSB – Least Significant Bit

MOS – Metal Oxide Semiconductor

MODEM -Â Modulator – Demodulator

MRS – Mask Programmable System

MPU – NMicroprocessors Unit

MSB – Most Significant! Bit

MSi -Â Medium Scale Integration

NMI – Non-Maskable Interrupt

OE – Output Enable

PC – Printed Circuit

P!C – Programmable Interval Controller

PIT – Programmable Interval Timer

PPI – Programmable Peripheral Interface •

PROM -Â Programmable Read Only Memory

RAM – Random Access Memory

RAS – Row Address Strobe

R /W – Read /Write

RMW – Read / Modify/Wnte

SE – Sense? Enable
TSP – Tri-share Port

TTL -Transistor – Transistor Logic
WE – Write Enabie