| Microprocessor | Microcontroller |
|---|---|
| A microprocessor requires multiple external support devices such as ROM, RAM, Serial interface, Timers, and I/O ports. These components are connected via a system bus, which includes an address bus, data bus, and control bus. | A microcontroller integrates all support devices, including ROM, RAM, Timers, Serial interface, and I/O ports, within a single chip. This eliminates the need for external interfacing, making system design simpler and more efficient. |