Automatic Voltage Regulator, or a family of microcontrollers, or various technical abbreviations.
Modern acronym from 'Automatic Voltage Regulator' or 'Alf and Vegard's RISC processor' (for the microcontroller). These technical abbreviations emerged in the late 20th century with advancing electronics.
AVR microcontrollers revolutionized electronics hobbyist culture by making programmable chips accessible to non-engineers, democratizing technology creation and spawning the maker movement that led to innovations from 3D printing to IoT devices.
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