What is a microcontroller, programming microcontrollers,32 bit, pic, wireless

USB, wireless, pic, lcd, embedded and low power 32bit microcontrollers with programming software. What is a 32 bit microcontroller.32 bit microcontroller manufacturers & programmable 32bit microcontrollers.

https://www.futureelectronics.com/p/semiconductors--microcontrollers--32-bit/pic32mx460f512l-80i-pt-microchip-7134422