Many devices use microcontroller.


Microcontroller : A microcontroller is a small computer (SoC) on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals. Program memory in the form of Ferroelectric RAM, NOR flash or OTP ROM is also often included on chip, as well as a typically small amount of RAM. (https://en.wikipedia.org/wiki/Microcontroller)