AC

alternating current

ACIA

asynchronous communications interface adapter

ADC

analog to digital converter

AFC

automatic frequency control

ALU

arithmetic logic unit

AM

amplitude modulation

ANSI

American National Standards Institute

APU

arithmetic processing unit

ASCII

American Standard Code for Information Interchange

ASIC

application specific integrated circuit

ASK

amplitude shift keying

ASTM

American Society for Testing and Materials

BASIC

Beginner's All-Purpose Symbolic Instruction Code

BCD

binary coded decimal

BFO

beat frequency oscillator

BIFET

bipolar field effect transistor

BPS

bits per second

CAD

computer aided design

CCD

charge-coupled device

CCITT

Consultive Committee on Telephony and Telegraphy

CD

compact disk

CDA

current differencing amplifiers

CE

chip enable

CISC

complex instruction set computer

CMOS

complementary metal oxide semiconductor

CMRR

common mode rejection ratio

CPI

characters per inch

CPU

central processing unit

CRC

cyclic redundancy check

CRT

cathode ray tube

CRTC

CRT controller

CS

chip select

CTS

clear to send

DAC

digital to analog converter

DBMS

data base management system

DC

direct current

DCE

data circuit terminating equipment

DIL

dual in-line

DIP

dual in-line package

DMA

direct memory access

DMAC

DMA controller

DOS

disk operating system

DPI

dots per inch

DRAM

dynamic random access memory

DSP

digital signal processor

DSR

data set ready

DTE

data terminal equipment

DTL

diode transistor logic

DTMF

dual tone multi-frequency

DTR

data terminal ready

EAROM

electrically alterable ROM

EBCDIC

extended binary coded decimal interchange code

ECL

emitter coupled logic

EDC

error correction and detection

EEPLD

electrically erasable programmable logic device

EEPROM

electrically erasable programmable read only memory

EIA

Electronic Industries Association

EMI

electromagnetic interference

EOC

end of conversion

EOF

end of file

EPLD

(UV) erasable programmable logic device

EPROM

erasable programmable read only memory

FAMOS

floating gate avalanche MOS

FCC

Federal Communications Commission

FDC

floppy disk controller

FET

field effect transistor

FF

flip flop

FFT

fast fourier transform

FIFO

first in, first out

FIR

finite impulse response

FM

frequency modulation

FPGA

field programmable gate array

FPLA

field programmable logic array

FPU

floating point processing unit

FSK

frequency shift keying

GAL

generic array logic

GPIA

general purpose interface adapter

GPIB

general purpose interface bus

GTO

gate turn-off switch

HDC

hard disk controller

HDLC

high level data link control

HDTV

high definition television

HEMT

high electron mobility transistor

HEX

hexadecimal

HF

high frequency

HPIB

Hewlett-Packard interface bus

IC

integrated circuit

ICE

in-circuit emulation

IEC

International Electro technical Commission

IEEE

Institute of Electrical and Electronics Engineers

IGFET

insulated gate field effect transistor

IIR

infinite impulse response

INT

interrupt

I/O

input/output

IR

infra red light

IRQ

interrupt request

ISDN

integrated service digital networks

ISFET

ion selective field effect transistor

ISO

International Standards Organisation

I 2L

integrated injection logic

JAN

joint army navy

LCA

logic cell array

LCD

liquid crystal display

LED

light emitting diode

LIFO

last in, first out

LPC

linear predictive coding

LSB

least significant bit / lower sideband

LSI

large scale integration

MFM

modified frequency modulation

MOS

metal oxide semiconductor

MPU

microprocessor unit

MSB

most significant bit

MSI

medium scale integration

MTBF

mean time between failure

MUX

multiplexer

NBS

National Bureau of Standards

NMOS

N-channel MOS

NRZ

non-return to zero

NRZI

non-return to zero inverted

NTC

negative temperature coefficient

OCR

optical character reader

OEM

original equipment manufacturer

OOP

object oriented programming

OPAMP

operational amplifier

OS

operating system

OSI

open systems interconnection

OTA

operational transconductance amplifier

PAL

programmable array logic / phase alternation line

PC

personal computer

PCB

printed circuit board

PCM

pulse code modulation

PIC

programmable interrupt controller

PLA

programmable logic array

PLCC

plastic leadless chip carrier

PLD

programmable logic device

PLL

phase locked loop

PM

phase modulation

PMOS

p-channel MOS

PROM

programmable read only memory

PSK

phase shift keying

PTP

paper tape punch

PTP

paper tape reader

QAM

quadrature amplitude modulation

RAM

random access memory

RDY

ready

RF

radio frequency

RISC

reduced instruction set computer

RLL

run length limited

RMS

root mean square

ROM

read only memory

RTC

real time clock

RTD

resistance thermal detectors

RTS

ready to send

Rx

receiver

SAR

successive approximation register

SCR

silicon controlled rectifier

SDLC

synchronous data link control

SIL

single in line

S&H

sample and hold

S/N

signal to noise

SMD

surface mounted device

SMT

surface mount technology

SOA

safe operating area

SOS

silicon on sapphire

SRAM

static random access memory

SSI

small scale integration

TPI

tracks per inch

TTL

transistor transistor logic

TTY

teletype writer

Tx

transmitter

UART

universal asynchronous receiver transmitter

UHF

ultra high frequency

USART

universal synchronous asynchronous receiver transmitter

UV

ultra violet

VCA

voltage controlled amplifier

VCO

voltage controlled oscillator

VHF

very high frequency

VLSI

very large scale integration

VMOS

v-groove MOS

WORM

write once, read many

µC

microcomputer

µP

microprocessor