A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
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 |
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 |
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 |
CW | ClockWise |
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 |
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 |
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 | 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 |
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 |
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) |
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 |
JEDEC | Joint Electron Device Engineering Council |
JFET | Junction Field Effect Transistor |
JIS | Japanese Industrial Standard |
JPL | Jet Propulsion Laboratory |
JUG | Joint Users Group |
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 | 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 |
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 |
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 :-) |
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 |
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 |
QA | Quality Assurance |
QC | Quality Control |
QIC | Quarter Inch Cartridge |
QIP | Quad Inline Package |
QSM | Quad Surface Mount |
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/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 | Systeme 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 |
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/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 |
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 |
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 |
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 |
XMT | TransMiT |
XTAL | crysTAL |
YAG | Yttrium Aluminum Garnet (laser) |
YIG | Yttrium Iron Garnet |
ZD | Zero Defects |
ZIF | Zero Insertion Force |
ZIP | Zigzag Inline Package | Compression scheme |
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