| Abbreviation | Definition |
|---|---|
| ALSC | Autonomous Linear Sequential Circuit |
| ALT | Alternating |
| ALTC | Automatic Load Tap Changing |
| ALU | Arithmetic Logic Unit |
| ALVT | Advanced Low Voltage Technology |
| AM | Addressing Mode |
| Am | Americium |
| AM | Amplitude Modulation |
| AM | Analog Modeling |
| AM | Ante Meridiem (before noon) |
| AMBA | Advanced Microcontroller Bus Architecture |
| AMC | Airborne Molecular Contamination |
| AMD | Advanced Micro Devices company |
| AMD | Amplitude Modification Device |
| AME | Advanced Metal Evaporated |
| AMEC | Alltek Marine Electronics Corp |
| AMEC | Alltek Marine Electronics Corporation |
| AMEI | Association of Musical Electronics Industry |
| AMFT | Automatic Magnetron Frequency Tuning |
| AMH | Automated Material Handling |