A -- Back To Top |
AC Alternating Current (vs DC) |
ACK Acknowledge (logic signal) |
ACIA Asynchronous Communication Interface Adapter |
ACL Advanced CMOS Logic (as in 74ACL245) |
A/D Analog to Digital |
AF Audio Frequency |
AFC Automatic Frequency Control |
AGC Automatic Gain Control |
AI Artificial Intelligence |
ALC Automatic Level Control |
ALU Arithmetic Logic Unit |
A/N Alphanumeric |
ANSI American National Standards Institute |
ARRL American Radio Relay League |
AS Advanced Schottky (as in 74AS245) |
ASIC Application-Specific Integrated Circuit |
ASK Amplitude-Shift Keying |
ATC Air Traffic Control |
AV Audio/Visual |
AVC Automatic Volume Control |
B -- Back To Top |
BASIC Beginners' All-purpose Symbolic Instruction Code |
BBD Bucket Brigade Device |
BCD Binary Coded Decimal |
BEV Billion Electron Volts |
BIFET BIpolar Field-Effect Transistor |
BNC Baby N Connector |
BPI Bits Per Inch |
BPS Bits Per Second |
BTW By The Way |
B&W Black & White (TV) |
BW BandWidth |
C -- Back To Top |
CAD Computer Assisted Design |
CADA Computer Assisted Design and Analysis |
CADD Computer Assisted Design and Development |
CAE Computer Assisted Engineering |
CAM Computer Assisted Manufacturing |
CAN CANcel |
CAS Column-Address Strobe (logic signal) |
CATV CAble TeleVision |
CB Citizens' Band |
CBI Complementary Binary |
CC Constant Current |
CCD Charge Coupled Device (used in cameras) |
CCITT International Telegraphy and Telephony Consultative Committee |
CCTV Closed Circuit TeleVision |
CCW Counter Clock-Wise |
CD Compact Disk |
CD-I Compact Disk - Interactive |
CD-ROM Compact Disk - Read Only Memory |
CECL Cascode Emitter-Coubled Logic |
CEMF Counter ElectroMotive Force |
CerDIP Ceramic Dual Inline Package |
CES Consumer Electronics Show |
CF Center Frequency |
CFM Cubic Feet per Minute |
CISC Complex Instruction Set Computer (vs RISC) |
CL Current Loop |
CMOS Complementary Metal Oxide Semiconductor |
CP/M Control Program for Microcomputers (operating system) |
CPI Character Per Inch |
CPU Central Processing Unit |
CRC Cyclic Redundancy Check (error detection scheme) |
CRT Cathode Ray Tube (TV/Monitor display, vs LCD) |
CS Control Strobe (logic signal) |
CSA Canadian Standards Association (UL's Canadian counterpart) |
CTC Counter/Timer Circuit |
CTS Clear To Send (protocol signal) |
CV Constant Voltage |
CVT Constant Voltage Transformer (aka ferroresonant by Sola(tm)) |
CW ClockWise |
D -- Back To Top |
D/A Digital to Analog |
DAC Digital to Analog Converter | Data Acquisition and Control |
DARPA Defense Advanced Research Projects Agency |
DAV Data AValiable | DatA Valid (logic signal) |
dB deciBel |
DBA DeciBels - Adjusted |
DBK DeciBels - referred to 1 Kilowatt |
dBM DeciBels - above or below 1 milliwatt |
DBV DeciBels - Voltage |
DBX DeciBels - above reference coupling |
DC Direct Current (vs AC) |
DCD Data Carrier Detect (protocol signal) |
DES Data Encription Standard |
DIAC Bilateral trigger diode |
DIL Dual In Line |
DIN Deutsche Industrie Normenausschuss (aka German Standards Institute) |
DIP Dual Inline Package |
DLC Dual-Layer Capacitor |
DMA Direct Memory Access |
DMM Digital MultiMeter |
DOD Department of Defense |
DOS Disk Operating System |
DOT Department of Transportation |
DP Data Processing |
DPDT Dual Pole Dual Throw (as in a switch) |
DPI Dots Per Inch (as in resolution) |
DPST Dual Pole Single Throw (as in a switch) |
DRAM Dynamic Random Access Memory |
DS Data Strobe (logic signal) |
DSO Digital Storage Oscilloscope |
DSP Digital Signal Processing |
DTL Diode Transistor Logic (predecessor of TTL) |
DTMF Dual Tone Multi-Frequency (aka Touch Tones(tm)) |
DTR Data Terminal Ready (protcol signal) |
DVM Digital Volt-Meter |
E -- Back To Top |
E2PROM Electricaly Erasable Programmable Read Only Memory |
EAPROM Electricaly Alterable Read Only Memory |
EBCDIC Extended Binary Coded Decimal Interchange Code |
ECC Error Checking and Correction |
ECL Emitter Coupled Logic |
EEPROM Electricaly Erasable Programmable Read Only Memory |
EGA Enhanced Graphics Adapter |
EIA Electronics Industries Association |
EL ElectroLuminescent |
ELF Extremly Low Frequency |
EMF ElectroMotive Force |
EMI ElectroMagnetic Interference |
EMP ElectroMagnetic Pulse |
ENIAC Electronic Numerical Integrater and Computer (aka first computer) |
EOT End Of Transmission (protocol signal) |
EPLD Electricaly Programmable Logic Device |
EPROM Electricaly Programmable Read Only Memory (UltraViolet erased) |
EQ EQualizer |
ESA European Space Agency |
ESD Electrostatic Sensitive Device (aka CMOS :-) |
ESR Equivalent Series Resistance |
EV Electron Volt |
F -- Back To Top |
F Farad (measure of capacitance) |
FAA Federal Aviation Administration |
FAST Fairchild Advanced Schottky TTL (as in 74F245) |
FAX Facsimile |
FCC Federal Communications Commision |
FDC Floppy Disk Controller |
FET Field Effect Transistor |
FF Flip Flop |
FFT Fast Fourier Transform |
FIFO First In First Out |
FILO First In Last Out |
FM Frequency Modulation |
FORTRAN FORmula TRANslation |
FP Floating Point |
FPLA Field Programmable Logic Array |
FPU Floating Point Unit |
FSK Frequency-Shift Keying |
FTP File Transfer Protocol |
FUBAR Fouled/F***ed Up Beyond Any Recognition/Repair |
FVC Frequency to Voltage Converter |
G -- Back To Top |
GA Gate Array |
GAL Generic Array Logic |
GCS Gate Controller Switch |
GFCI Ground Fault Circuit Interrupter |
GFI Ground Fault Interrupter |
GFLOPS Billions of FLOating Point operations per Second |
GIGO Garbage In Garbage Out |
GND GrouND |
GPIB General Purpose Interface Bus |
GPS Global Positioning System |
H -- Back To Top |
HAL Hardwired Array Logic |
HC High speed Cmos (as in 74HC245) |
HCT High speed Cmos with Ttl thersholds (as in 74HCT245) |
HD High Density |
HDC Hard Disk Controller |
HDTV High Definition TeleVision |
HDX Half DupleX |
HER High Efficiency Red (as in a LED) |
HET Hetetodyne |
HF High Frequency |
HFS Hierarchical File System |
HIC Hybrid Integrated Circuit |
HP Hewlett Packard (company) | Horse Power |
HPIB Hewlett Packard Interface Bus |
HPIL Hewlett Packard Interface Loop (as in HP41CX calculator) |
HTL High Threshold Logic |
HVDC High Volatage Direct Current |
HVPS High Volatage Power Supply |
Hz Hertz (cycles per second) |
I -- Back To Top |
I2ICE Integrated Instrumentation and InCircuit Emulation |
IA Instrumentation Amplifier |
IC Integrated Circuit |
ICE InCircuit Emulation |
IEEE Institute of Electrical and Electronics Engineers |
IF Intermediate Frequency |
IGFET Insulated Gate Field Effect Transistor |
IMHO In My Humble Opinion |
IMNHO In My Not so Humble Opinion |
IOB Input/Output processor |
IP Interface Processor |
IR Current/Resistance | InfraRed |
IRED InfraRed Emitting Diode |
ISA Instrument Society of America |
ISN Information Systems Network |
ISO In Search Of |
J -- Back To Top |
JEDEC Joint Electron Device Engineering Council |
JFET Junction Field Effect Transistor |
JIS Japanese Industrial Standard |
JPL Jet Propulsion Laboratory |
JUG Joint Users Group |
K -- Back To Top |
K Kilo (1000 units) |
KA KiloAmpere (1000A) |
KBPS KiloBits Per Second |
KEV Kilo Electron Volts |
KHz Kilo Hertz (1000 cycles per second) |
KVA Kilo Volt Amperes |
KWH Kilo Watt Hours |
L -- Back To Top |
L Inductance |
L2FET Logic Level Field Effect Transistor |
LAN Local Area Network |
LASCR Light Activated Silicon Controlled Rectifier |
LASER Light Amplification by Stimulated Emission of Radiation |
LC Inductance and Capacitance |
LCD Liquid Crystal Display |
LCM Least/Lowest Common Multiple |
LD Line Driver |
LED Light Emitting Diode |
LF Low Frequency |
LIFO Last In First Out |
LISP LISt Processing (language) |
LO Local Oscillator |
LORAN LOng RAnge Navigation |
LP Low Pass |
LPC Linear Predictive Coding |
LPM Lines Per Minute |
LPT Line PrinTer (port - aka parallel port - of IBM PC fame) |
LSB Least Significant Bit |
LSD Least Significant Digit |
LSI Large Scale Integration |
LUT Look Up Table |
LW Long Wave |
M -- Back To Top |
MB MegaBytes (1024 * 1024 bytes) |
MBPS Million Bytes Per Second |
MCA Micro Channel Architecture (IBM PS/2's bus |
MCU MicroComputer Unit |
MDAC Multiplying Digital to Analog Converter |
MECL Motorola Emitter Coupled Logic |
MFLOPS Millions of FLOating Point operations per Second |
MFM Modified Frequency Modulation |
MHz MegaHertz |
MIDI Music Instrument Digital Interface |
MIL MILitary |
MIPS Millions of Instructions Per Second |
MMU Memory Management Unit |
MO Master Oscillator |
MOS Metal Oxide Semiconductor |
MOSFET Metal Oxide Semiconductor Field Effect Transistor |
MOV Metal Oxide Varistor |
MPU Main Processing Unit |
MR Magnetic Resonance |
MS-DOS MicroSoft Disk Operating System |
MSB Most Significant Bit |
MSD Most Significant Digit |
MSI Medium Scale Intergration |
MTBF Mean Time Between Failures |
MTS Multichannel Television Sound (aka Stereo TV) |
MUX Multiplexer |
N -- Back To Top |
NASA National Aeronautics and Space Administration |
NC Not Connected (pin) | Normally Closed (switch/relay) |
NEDA National Electronics Distributors Association |
NEMA National Electrical Manufacturers Association |
NF NanoFarad (measure of capacitance) |
NFS Network File Server |
NiCad Nickel Cadmium (rechargable battery) TM of Saft America |
NMOS N-channel Metal Oxide Semiconductor |
NMR Nuclear Magnetic Resonance |
NO Normally Open (switch/relay) |
NOAA National Oceanic and Atmospheric Administration |
NORAD NORth American Defense |
NPN Negative Positive Negative (as in 2N2222 transistor) |
NPO Negative Positive 0 temperature coefficient (cermaic capacitors) |
NPR Nations Public Radio |
NRZ Non Return to Zero |
NRZI Non Return to Zero Invert |
NSB National Science Board |
NSF National Science Foundation |
NSPE National Society of Professional Engineers |
NT Network Terminator |
NTC Negative Temperature Coefficient |
NTSC National Television Systems Committee (Never The Same Color twice) |
O -- Back To Top |
OC Open Collector |
OCR Optical Character Recognition |
OEM Original Equipment Manufacturer |
OS Operating System |
OSCAR Orbiting Satellite Carrying Amateur Radio |
OSHA Occupational Safety and Health Administration |
OTDR Optical Time Domain Reflectrometry |
OTOH On The Other Hand |
OTP One Time Programmable (as in PROM or plastic EPROM) |
OVP Over Voltage Protection |
P -- Back To Top |
PA Power Amplifier | Public Address |
PAL Programmable Array Logic (TM of Monolithic Memories) |
PBX Perivate Branch eXchange |
PC Personal Computer | Printed Circuit | Program Counter |
PCB Printed Circuit Board |
PCC Plastic Chip Carrier |
PCM Pulse Code Modulation |
PEC PhotoElectric Cell |
PF Power Factor |
PG Power Gain |
PGA Pin Grid Array |
PIA Peripheral Interface Adapter |
PIC Priority Interrupt Controller | Prallax'es microcontroller name |
PIV Peak Inverse Voltage |
PLA Programmable Logic Array |
PLCC Plastic Leaded Chip Carrier |
PLD Programmable Logic Device |
PLL Phase Locked Loop |
PM Phase Modulation | Pulse Modulation |
PNP Positive Negative Positive (transistor) |
POS Point Of Sale |
POV Peak Operating Voltage |
PPM Parts Per Million |
PPS Pulses Per Second |
PRN Pseudo Random Noise |
PROM Programmable Read Only Memory |
PSG Programmable Sound Generator |
PSI Pounds per Square Inch (pressure) |
PSK Phase Shift Keying |
PTT Push To Talk (microphone) |
PUT Programmable Unijunction Transistor |
PV PhotoVoltaic |
PWM Pulse Width Modulation |
PWR PoWeR |
Q -- Back To Top |
QA Quality Assurance |
QC Quality Control |
QIC Quarter Inch Cartridge |
QIP Quad Inline Package |
QSM Quad Surface Mount |
R -- Back To Top |
R&D Research and Development |
RAD Radiation Absorbed Dose |
RADAR RAdio Detection And Ranging |
RAM Random Access Memory |
RAS Row Address Strobe (logic signal) |
RC Radio Control | Resistance and Capacitance |
RCV ReCeiVe |
RD Receive Data | ReaD (logic signal) |
RDA Deceive Data |
RDY ReaDY |
REM Roentgen equivalent man |
REP Roentgen equivalent Physical |
RET RETurn |
RF Radio Frequency |
RFI Radio Frequency Interference |
RGB Red Green Blue |
RH Relative Humidity |
RHDP Right Hand Decimal Point |
RISC Reduced Instruction Set Computer (vs CISC) |
RLC Resistance Inductance Capacitance |
RLG Ring Laser Gyroscope |
RMI Radio Magnetic Interference |
RMS Root Mean Square |
ROM Read Only Memory |
RPM Revolutions Per Minute |
RPN Reverse Polish Notation (as in HP calculators) |
RPS Revolutions Per Second |
RS Reed Solomon (error correction) |
RT Real Time | Rise Time |
RTD Resistance Temperature Detector |
RTI Real Time Interrupt |
RTL Resistor Transistor Logic |
RTOS Real Time Operating System |
RTS Request To Send (protocol signal) |
S -- Back To Top |
S/H Sample and Hold |
S/N Signal to Noise (ratio) |
SAW Surface Acoustic Wave |
SBC Single Board Computer |
SCA SubCarrier Adapter |
SCI Serial Communication Interface |
SCL Serial CLock |
SCR Silicon Controller Rectifier |
SCS Silicon Controller Switch |
SCSI Small Computer System Interface |
SDI Strategic Defense Initiative |
SEM Scanning Electron Microscope |
SEMI Semiconductor Equipment and Materials Institute |
SFC polyStyrene Film Capacitor |
SG Signal Ground |
SI Syste^me International (international system of units) |
SIMM Single Inline Memory Module |
SIO Serial Input and Output |
SIPO Serial In Parallel Out |
SLC Sigle Layer Ceramic (capacitor) |
SM Surface Mount |
SMD Surface Mount Device |
SNR Signal to Noise Ratio |
SO Serial Output | Small Outline | Significant Other (aka mate) |
SOIC Small Outline Integrated Circuit |
SOJ Small Outline J-leaded (chip package) |
SOLV SOLenoid Valve |
SONAR SOund NAvigation and Ranging |
SOP Small Outline Package |
SP Signal Processor | Stack Pointer |
SPDT Single Pole Double Throw (switch) |
SPI Serial to Parallel Interface |
SPICE Simulation Program with Integrated Circuit Emphasis |
SPL Sound Pressure Level |
SPST Single Pole Single Throw (switch) |
SQL Structured Query Language (for databases) |
SR Shift Register |
SRAM Static Random Access Memory |
SSB Single SideBand |
SSI Small Scale Integration |
SSR Solid State Relay |
SSTV Slow Scan TeleVision |
SW Short Wave |
T -- Back To Top |
T/H Track and Hold |
TC Temperature Coefficient |
TCP/IP Transmission Control Protocol/Internet Protocol |
TD Tunnel Diode |
TDD Telecomunication Devices for the Deaf |
TEM Transverse Electromagnetic (wave) |
TF Transfer Function |
TFD Thin Film Detector |
TFEL Thin Film ElectroLuminescent |
TFT Thin Film Transistor |
THD Total Harmonic Distortion |
THz TetraHertz |
TIG Tungsten Inert Gas |
TM Transverse Magnetic (wave) |
TR Transient Response |
TS Time Sharing |
TTL Transistor Transistor Logic |
TV TeleVision |
TWT Traveling Wave Tube |
U -- Back To Top |
UART Universal Asynchronous Receiver/Transmitter |
uF micro Farad (measure of capacitance) |
UHF Ultra High Frequency |
UHV Ultra High Vacuum |
UJT UniJunction Transistor |
UL Underwriters Laboratories |
ULSI Ultra Large Scale Integration |
UPC Universal Product Code |
UPS Uninterruptible Power Supply |
USART Universal Synchronous/Asynchronous Receiver/Transmitter |
UTC Universal Time Code |
UV UltraViolet |
UVA UltraViolet Alpha |
UVB UltraViolet Beta |
V -- Back To Top |
VA Volt Ampere |
VAC Volts Alternating Current |
VAR VARiable |
VCC Supply Voltage - positive |
VCD Variable Capacitance Diode |
VCO Voltage Controlled Oscillator |
VCR Video Cassette Recorder |
VDC Volts Direct Current |
VDD Supply Voltage - negative |
VF Vacuum Fluorecent |
VFC Voltage to Frequency Converter |
VFO Variable Frequency Oscillator (vs a crystal oscillator) |
VHF Very High Frequency |
VLF Very Low Frequency |
VLSI Very Large Scale Integration |
VLT Video Look up Table |
VOL VOLume |
VOM Volt OhmMeter |
VOX Voice Operated transmit ("trans" = X as in "Xmitter") |
VR Voltage Regulator |
VRAM Video Random Access Memory (aka Very fast RAM) |
VS Vertical Sync |
VSS Supply Voltage - Negative |
VT Virtual Terminal |
VTM Voltage Tunable Magnetron |
VTVM Vacuum Tube Volt Meter |
VXO Variable crystal Oscilator |
W -- Back To Top |
WACK Wait before ACKowledge |
WDT Watch Dog Timer |
WHR Watt HouR |
WP Word Processor |
WPM Words Per Minute |
WR WRite (logic signal) |
WV Working Voltage |
WW Wire Wound | Wire Wrap |
X -- Back To Top |
XMT TransMiT |
XTAL crysTAL |
Y -- Back To Top |
YAG Yttrium Aluminum Garnet (laser) |
YIG Yttrium Iron Garnet |
Z -- Back To Top |
ZD Zero Defects |
ZIF Zero Insertion Force |
ZIP Zigzag Inline Package | Compression scheme |
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