As for what else is out there in large numbers, I think a lot of 8bit Z80 and AVR microcontrollers (like the ATmega328 used in Arduino Uno) are embedded in larger systems and go unnoticed. More recently I've seen the Xtensa (32bit RISC) catching on with the popular ESP32 and ESP8266 SOCs.
As for what else is out there in large numbers, I think a lot of 8bit Z80 and AVR microcontrollers (like the ATmega328 used in Arduino Uno) are embedded in larger systems and go unnoticed. More recently I've seen the Xtensa (32bit RISC) catching on with the popular ESP32 and ESP8266 SOCs.