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Definition: AVR

(1) (Automatic Voltage Regulation) See voltage regulator.

(2) (Automatic Voice Recognition) See voice recognition.

(3) See A/V receiver.

(4) A family of microcontrollers used in embedded systems from Atmel Corporation, San Jose, CA, www.microchip.com. Most AVR chips use 8-bit microprocessors except for the 32-bit AVR32. It is unclear what the name actually stands for; however, possibilities are "Advanced Virtual RISC" or "Alf and Vegard RISC," the latter being the first names of the Norwegian students who designed the architecture in 1996. See microcontroller and embedded system.