The Arduino Nano and Uno are equipped with very similar processors (the chip that essentially serves as the brain of the board). The Nano features an ATmega328, while the Uno sports an ATmega328P.

[Damian Peckett] has implemented an Apple ][, its 6502 processor, and a cassette port, all on an Arduino Uno. If that wasn’t enough, he also uses a PS/2 keyboard for input and outputs analog VGA.

The Tiva series of LaunchPads serve as TI’s equivalent of the Arduino Uno, and hovers at about the ... The Tiva’s processor runs five times faster than standard ATMega328P, and it sports ...