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 |
A |
| A | Ampere |
| AC | Alternating Current |
| ACK | Acknowledge |
| ACIA | Asynchronous Communication Interface Adapter |
| ACL | Advanced CMOS Logic |
| A/D | Analog to Digital |
| AF | Audio Frequency |
| AFC | Automatic Frequency Control |
| AGC | Automatic Gain Control |
| AH | Ampere-Hour |
| AI | Artificial Intelligence |
| AKA | Also Known As |
| ALC | Automatic Level Control |
| ALU | Arithmetic Logic Unit |
| A/N | Alphanumeric |
| ANSI | American National Standards Institute |
| ARRL | American Radio Relay League |
| AS | Advanced Schottky |
| ASCII | American Standard Code for Information Interchange |
| ASIC | Application Specific Integrated Circuit |
| ASK | Amplitude Shift Keying |
| ATC | Air Traffic Control |
| AV | Audio/Visual |
| AVC | Automatic Volume Control |
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B |
| BASIC | Beginners All-purpose Symbolic Instruction Code |
| BBD | Bucket Brigade Device |
| BCE | Binary Coded Decimal |
| BEV | Billion Electron Volts |
| BIFET | Bipolar Field-Effect Transistor |
| BJT | Bipolar Junction Transistor |
| BNC | Bayonet Neill-Concelman (connector) |
| BPI | Bits Per Inch |
| BPS | Bits Per Second |
| BTW | By The Way |
| B&W | Black & White |
| BW | BandWidth |
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C |
| C | Capacitance |
| CAD | Computer Assisted Design or Computer Aided Drafting |
| 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 |
| CATV | CAble TeleVision |
| CB | Citizens Band |
| CBI | Complementary BInary or Computer Based Instruction |
| CBT | Computer Based Training |
| CC | Constant Current |
| CCD | Charge Coupled Device |
| CCITT | International Telegraphy and Telephony Consultative Committee |
| CCTV | Closed Circuit TeleVision |
| CCW | Counter Clock Wise |
| CD | Compact Disk |
| CD-I | Compact Disk - Interactiv |
| CDR | Compact Disk Recordable |
| CDROM | Compact Disk Read Only Memory |
| CDRW | Compact Disk ReWriteable |
| CECL | Cascode Emitter Coupled Logic |
| CEMA | Consumer Electronics Manufacturers Association |
| CEMF | Counter ElectroMotive Force |
| CERDIP | CERamic Dual Inline Package |
| CES | Consumer Electronics Show |
| CF | Center Frequency or Cubic Feet |
| CFM | Cubic Feet per Minute |
| CIM | Computer Integrated Manufacturing |
| CISC | Complex Instruction Set Computer |
| CL | Current Loop |
| CMOS | Complementary Metal Oxide Semiconductor |
| CP/M | Control Program for Microcomputers |
| CPI | Characters Per Inch |
| CPU | Central Processing Unit |
| CRC | Cyclic Redundancy Check |
| CRT | Cathode Ray Tube |
| CS | Control Strobe (logic signal) |
| CSA | Canadian Standards Association |
| CTC | Counter/Timer Circuit |
| CTS | Clear To Send (protocol signal) |
| CV | Constant Voltage |
| CVT | Constant Voltage Transformer |
| CW | ClockWise, Continuous Wave, Carrier Wave (for old-timers) |
| CYMK | Cyan Yellow Magenta blacK |
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D |
| D/A | Digital to Analog |
| DAC | Digital to Analog Converter or Data Acquisition and Control |
| DARPA | Defense Advanced Research Projects Agency |
| DAV | Data AValiable or DatA Valid |
| DB | Data Base |
| dB | DeciBel |
| dBA | DeciBel - Adjusted |
| dBK | DeciBel (1 kilowatt ref) |
| DBM | Data Base Management |
| dBm | DeciBel (1 milliwatt ref) |
| dBV | DeciBel (1 volt ref) |
| dBX | DeciBel - above reference |
| DC | Direct Current |
| DCD | Data Carrier Detect (protocol signal) |
| DDS | Direct Digital Synthesis |
| DES | Data Encryption 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 | Double Pole Double Throw |
| DPI | Dots Per Inch |
| DPST | Double Pole Single Throw |
| DRAM | Dynamic Random Access Memory |
| DS | Data Strobe |
| DSO | Digital Storage Oscilloscope |
| DSP | Digital Signal Processing |
| DSR | Data Set Ready |
| DTL | Diode Transistor Logic |
| DTMF | Dual Tone Multi Frequency |
| DTR | Data Terminal Ready |
| DVM | Digital Volt-Meter |
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E |
| E2PROM | Electrically Erasable Programmable Read Only Memory |
| EAROM | Electrically Alterable Read Only Memory |
| EBCDIC | Extended Binary Coded Decimal Interchange Code |
| ECC | Error Checking and Correction |
| ECL | Emitter Coupled Logic |
| EEPROM | Electrically Erasable Programmable Read Only Memory |
| EGA | Enhanced Graphics Adapter |
| EHF | Extremely High Frequency |
| EIA | Electronics Industries Association |
| EL | ElectroLuminescent |
| ELF | Extremely Low Frequency |
| EMF | ElectroMotive Force |
| EMI | ElectroMagnetic Interference |
| EMP | ElectroMagnetic Pulse |
| ENIAC | Electronic Numerical Integrator and Calculator |
| EOT | End Of Transmission |
| EPLD | Electrically Programmable Logic Device |
| EPROM | Electrically Programmable Read Only Memory |
| EQ | EQualizer |
| ESA | European Space Agency |
| ESD | Electrostatic Sensitive Device or ElectroStatic Discharge |
| ESR | Equivalent Series Resistance |
| EV | Electron Volt |
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F |
| F | Farad |
| FAA | Federal Aviation Administration |
| FAST | Fairchild Advanced Schottky |
| FAX | Facsimile |
| FCC | Federal Communications Commission |
| FDC | Floppy Disk Controller |
| FDX | Full DupleX |
| FET | Field Effect Transistor |
| FF | Flip Flop |
| FFT | Fast Fourier Transform |
| FIFO | First In First Ou |
| FILO | First In Last Out |
| FM | Frequency Modulation |
| FORTRAN | FORmula TRANslato |
| FP | Floating Point |
| FPGA | Field Programmable Gate Array |
| FPLA | Field Programmable Logic Array |
| FPP | Floating Point Processor |
| FPU | Floating Point Unit |
| FSK | Frequency Shift Keying |
| FTP | File Transfer Protocol |
| FUBAR | Fouled Up Beyond Any Repair |
| FVC | Frequency to Voltage Converter |
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G |
| GA | Gate Array |
| GAL | Generic Array Logic |
| GCS | Gate Controlled 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 (evolved from HPIB by Hewlett Packard) |
| GPS | Global Positioning System |
| GUI | Graphical User Interface (software) |
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H |
| HAL | Hardwired Array Logic |
| HC | High speed CMOS |
| HCT | High speed CMOS with TTL thresholds |
| HD | High Density |
| HDC | Hard Disk Controller |
| HDTV | High Definition TeleVision |
| HDX | Half DupleX |
| HER | High Efficiency Red |
| HET | Heterodyne |
| HF | High Frequency |
| HFS | Hierarchical File System |
| HIC | Hybrid Integrated Circuit |
| HP | Hewlett Packard or Horse Power |
| HPIB | Hewlett Packard Interface Bus |
| HPIL | Hewlett Packard Interface Loop |
| HTL | High Threshold Logic |
| HVDC | High Voltage Direct Current |
| HVPS | High Voltage Power Supply |
| Hz | Hertz (frequency in cycles per second) |
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I |
| I2ICE | Integrated Instrumentation and In Circuit Emulation |
| I2R | Current (I) squared x Resistance |
| IA | Instrumentation Amplifier |
| IC | Integrated Circuit |
| ICE | In Circuit 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 |
| I/O | Input/Output |
| IOP | Input/Output Processor |
| IP | Interface Processor or Internet Protocol |
| IR | Current-Resistance or InfraRed |
| IRED | InfraRed Emitting Diode |
| IRLED | InfraRed Light Emitting Diode |
| IRQ | Interrupt ReQuest |
| ISA | Instrument Society of America |
| ISN | Information Systems Network |
| ISO | In Search Of |
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J |
| JEDEC | Joint Electron Device Engineering Council |
| JFET | Junction Field Effect Transistor |
| JIS | Japanese Industrial Standard |
| JPL | Jet Propulsion Laboratory |
| JUG | Joint Users Group |
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K |
| k | Kilo (1000 units) |
| kA | Kilo Ampere (1000 A) |
| kbPS | Kilo bits Per Second |
| kEV | Kilo Electron Volts |
| kHz | Kilo Hertz (1000 cycles per second) |
| kVA | Kilo Volt Amperes |
| kW | Kilo Watts |
| kWH | Kilo Watt Hours |
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L |
| 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 |
| LLFET | Logic Level Field Effect Transistor |
| LO | Local Oscillator |
| LORAN | LOng RAnge Navigation |
| LP | Low Pass |
| LPC | Linear Predictive Coding |
| LPM | Lines Per Minute |
| LPT | Line PrinTer |
| LSB | Least Significant Bit or Lower SideBand |
| LSD | Least Significant Digit |
| LSI | Large Scale Integration |
| LUT | Look Up Table |
| LW | Long Wave |
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M |
| mAH | milliAmpere-Hour |
| MB | MegaBytes |
| Mb | Megabits |
| MBPS | Million Bytes Per Second |
| MbPS | Million bits Per Second |
| MCA | Micro Channel Architecture |
| MCU | Micro Computer 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 |
| MILSPEC | MILitary SPECification |
| 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 |
| MSDOS | MicroSoft Disk Operating System |
| MSB | Most Significant Bit |
| MSD | Most Significant Digit |
| MSDS | Material Safety Data Sheet |
| MSI | Medium Scale Integration |
| MTBF | Mean Time Between Failures |
| MTS | Multichannel Television Sound |
| MUF | Maximum Useable Frequency |
| MUX | Multiplexer |
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N |
| NASA | National Aeronautics and Space Administration |
| NC | Not Connected or Normally Closed |
| NCO | Numerically Controlled Oscillator |
| NEDA | National Electronics Distributors Association |
| NEG | NEGative |
| NEMA | National Electrical Manufacturers Association |
| nF | NanoFarad |
| NFS | Network File Server |
| NiCad | Nickel Cadmium |
| NiMH | Nickel Metal Hydride |
| NMOS | N-channel Metal Oxide Semiconductor |
| NMR | Nuclear Magnetic Resonance |
| NO | Normally Open |
| NOAA | National Oceanic and Atmospheric Administration |
| NORAD | NORth American Defense |
| NPN | Negative Positive Negative |
| NPO | Negative Positive 0 temperature coefficient |
| NPR | Noise Power Ratio |
| 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 |
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O |
| OBTW | Oh, By The Way |
| OC | Open Collector |
| OCR | Optical Character Recognition |
| OEM | Original Equipment Manufacturer |
| OO | Object Oriented |
| OOP | Object Oriented Programming |
| OPAMP | OPerational AMPlifier |
| OS | Operating System |
| OSCAR | Orbiting Satellite Carrying Amateur Radio |
| OSHA | Occupational Safety and Health Administration |
| OTDR | Optical Time Domain Reflectometry |
| OTOH | On The Other Hand |
| OTP | One Time Programmable |
| OVP | Over Voltage Protection |
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P |
| PA | Power Amplifier or Public Address |
| PAL | Programmable Array Logic |
| PBX | Private Branch eXchange |
| PC | Personal Computer or Printed Circuit or Program Counter |
| PCB | Printed Circuit Board |
| PCC | Plastic Chip Carrier |
| PCM | Pulse Code Modulation |
| PEC | PhotoElectric Cell |
| PEP | Peak Envelope Power |
| PF | Power Factor |
| PG | Power Gain |
| PGA | Pin Grid Array |
| PIA | Peripheral Interface Adapter |
| PIC | Priority Interrupt Controller or Parallax'es microcontroller name |
| PIV | Peak Inverse Voltage |
| PIXEL | PI(X)cture ELement |
| PLA | Programmable Logic Array |
| PLCC | Plastic Leaded Chip Carrier |
| PLD | Programmable Logic Device |
| PLL | Phase Locked Loop |
| PM | Phase Modulation or Pulse Modulation |
| PNP | Positive Negative Positive |
| POS | Point Of Sale or POSitive |
| POV | Peak Operating Voltage |
| PPI | Pixels Per Inch |
| PPM | Parts Per Million or Pulse Position Modulation |
| PPS | Pulses Per Second |
| PRN | Pseudo Random Noise |
| PROM | Programmable Read Only Memory |
| PRV | Peak Reverse Voltage or Peak Repetitive Voltage |
| PSG | Programmable Sound Generator |
| PSI | Pounds per Square Inch |
| PSK | Phase Shift Keying |
| PTC | Positive Temperature Coefficient |
| PTT | Push To Talk |
| PUT | Programmable Unijunction Transistor |
| PV | PhotoVoltaic |
| PWM | Pulse Width Modulation |
| PWR | PoWeR |
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Q |
| QA | Quality Assurance |
| QC | Quality Control |
| QIC | Quarter Inch Cartridge |
| QIP | Quad Inline Package |
| QSM | Quad Surface Mount |
| QWERTY | Standard keyboard layout |
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R |
| R | Resistance |
| R&D | Research and Development |
| RAD | Radiation Absorbed Dose |
| RADAR | RAdio Detection And Ranging |
| RAM | Random Access Memory |
| RAS | Row Address Strobe |
| RC | Radio Control or Resistance and Capacitance |
| RCV | ReCeiVe |
| RD | Receive Data or ReaD |
| 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 |
| 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 |
| RPS | Revolutions Per Second |
| RS | Reed Solomon |
| RSSI | Received Signal Strength Indication |
| RT | Real Time or Rise Time |
| RTD | Resistance Temperature Detector |
| RTI | Real Time Interrupt |
| RTL | Resistor Transistor Logic |
| RTOS | Real Time Operating System |
| RTS | Request To Send |
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S |
| S/H | Sample and Hold |
| S/N | Signal to Noise |
| SAW | Surface Acoustic Wave |
| SBC | Single Board Computer |
| SCA | SubCarrier Adapter |
| SCI | Serial Communication Interface |
| SCL | Serial CLock |
| SCR | Silicon Controlled Rectifier |
| SCS | Silicon Controlled Switch |
| SCSI | Small Computer System Interface |
| SD | Standard Deviation |
| SDI | Strategic Defense Initiative |
| SDRAM | Synchronous Dynamic Random Access Memory |
| SEM | Scanning Electron Microscope |
| SEMI | Semiconductor Equipment and Materials Institute |
| SFC | polyStyrene Film Capacitor |
| SG | Signal Ground |
| SHF | Super High Frequency |
| SI | System International |
| SIMM | Single Inline Memory Module |
| SINAD | SIgnal-to-Noise-And-Distortion |
| SIO | Serial Input and Output |
| SIPO | Serial In Parallel Out |
| SLC | Single Layer Ceramic |
| SM | Surface Mount |
| SMD | Surface Mount Device |
| SNAFU | Situation Normal, All Fouled Up (other variations on F-word possible) |
| SNR | Signal to Noise Ratio |
| SMT | Surface Mount Technology |
| SO | Serial Output or Small Outline |
| SOIC | Small Outline Integrated Circuit |
| SOJ | Small Outline J-leaded |
| SOLV | SOLenoid Valve |
| SONAR | SOund NAvigation and Ranging |
| SOP | Small Outline Package |
| SP | Signal Processor or Stack Pointer |
| SPDT | Single Pole Double Throw |
| SPI | Serial to Parallel Interface |
| SPICE | Simulation Program with Integrated Circuit Emphasis |
| SPL | Sound Pressure Level |
| SPST | Single Pole Single Throw |
| SQL | Structured Query Language |
| SR | Shift Register |
| SRAM | Static Random Access Memory |
| SSB | Single SideBand |
| SSI | Small Scale Integration |
| SSIXS | Submarine Satellite Information eXchange System |
| SSR | Solid State Relay |
| SSTV | Slow Scan TeleVision |
| SVGA | Superior Versatile Graphics Adapter (800 x 600 pixels) |
| SW | Short Wave |
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T |
| T/H | Track and Hold |
| TC | Temperature Coefficient |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
| TD | Tunnel Diode |
| TDD | Telecommunication Devices for the Deaf |
| TDR | Time Domain Reflectometry |
| TEM | Transverse ElectroMagnetic |
| TF | Transfer Function |
| TFD | Thin Film Detector |
| TFEL | Thin Film ElectroLuminescent |
| TFT | Thin Film Transistor |
| THD | Total Harmonic Distortion |
| THz | Terra Hertz |
| TI | Texas Instruments (a company) |
| TIG | Tungsten Inert Gas |
| TM | Transverse Magnetic (wave) |
| TR | Transient Response |
| TRIAC | TRIode AC switch (bilateral SCR) |
| TS | Time Sharing |
| TTL | Transistor Transistor Logic |
| TV | TeleVision |
| TWT | Traveling Wave Tube |
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U |
| UART | Universal Asynchronous Receiver/Transmitter |
| _F | micro Farad |
| 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 |
| USB | Universal Serial Bus or Upper SideBand |
| UTC | Universal Time Code |
| UV | UltraViolet |
| UVA | UltraViolet Alpha |
| UVB | UltraViolet Beta |
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V |
| V | Volt |
| VA | Volt Ampere |
| VAC | Volts Alternating Current |
| VAR | VARiable or Volt Amperes Reactive |
| VARICAP | VARIable CAPacitance diode |
| VCC | Supply Voltage |
| VCD | Variable Capacitance Diode |
| VCO | Voltage Controlled Oscillator |
| VCR | Video Cassette Recorder |
| VDC | Volts Direct Current |
| VDD | Supply Voltage |
| VEE | Supply Voltage |
| VF | Vacuum Fluorescent |
| VFC | Voltage to Frequency Converter |
| VFO | Variable Frequency Oscillator |
| VGA | Versatile Graphics Adapter (640 x 480 pixels) |
| 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 |
| VR | Voltage Regulator or Virtual Reality |
| VRAM | Video Random Access Memory |
| VS | Vertical Sync |
| VSS | Supply Voltage |
| VT | Virtual Terminal |
| VTM | Voltage Tunable Magnetron |
| VTO | Voltage Tuned Oscillator |
| VTVM | Vacuum Tube Volt Meter |
| VXO | Variable crystal Oscillator |
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W |
| WACK | Wait before ACKnowledge |
| WDT | Watch Dog Timer |
| WH | Watt Hour |
| WHR | Watt HouR |
| WP | Word Processor |
| WPM | Words Per Minute |
| WR | WRite |
| WV | Working Voltage |
| WVDC | Working Volts DC |
| Ww | Wire Wound or Wire Wrap |
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X |
| XGA | eXtended Graphics Adapter |
| XMT | TransMiT |
| XOFF | Transmit OFF |
| XON | Transmit ON |
| XTAL | CrysTAL |
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Y |
| YAG | Yttrium Aluminum Garnet |
| YIG | Yttrium Iron Garnet |
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Z |
| ZD | Zero Defects |
| ZDT | Zero Defect Tolerance |
| ZIF | Zero Insertion Force |
| ZIP | Zigzag Inline Package |
