There’s also a tiny PCB-mount speaker, as well as I2C, SPI, and UART interfaces. Finally, there’s 2 MB of flash onboard, and a 40-pin connector hosting all the 6502 signals that you know and love.

But a Z80, a 6502, or similar was more likely to be found ... research into this system and even produced a recreated PCB, providing a fascinating window into embedded computing in the early ...