Apa itu Mikrokontroller ?

A microcontroller (MCU for microcontroller unit) is a small computer on a single metal-oxide-semiconductor (MOS) integrated circuit (IC) chip. A microcontroller contains one or more CPUs (processor cores) along with 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 small amount of RAM. Microcontrollers are designed for embedded applications, in contrast to the microprocessors used in personal computers or other general purpose applications consisting of various discrete chips.

Secara singkat Mikrokontroller itu adalah :  

Sebuah perangkat yang didalamnya terdapat berbagai komponen semikonduktor yang terintegrasi menjadi satu dalam sebuah chip, dimana dapat dapat bekerja sesuai dengan instruksi program yang ada di dalamnya.