A list of differences between Microprocessor and Microcontroller are given below.
| S.No | Microprocessor | Microcontroller |
|---|
| 1 | Microprocessor acts as a heart of computer system. | Microcontroller acts as a heart of embedded system. |
| 2 | It is a processor in which memory and I/O output component is connected externally. | It is a controlling device in which memory and I/O output component is present internally. |
| 3 | Since memory and I/O output is to be connected externally. Therefore the circuit is more complex. | Since on chip memory and I/O output component is available. Therefore the circuit is less complex. |
| 4 | It cannot be used in compact system. Therefore microprocessor is inefficient. | It can be used in compact system. Therefore microcontroller is more efficient. |
| 5 | Microprocessor has less number of registers. Therefore most of the operations are memory based. | Microcontroller has more number of registers. Therefore a program is easier to write. |
| 6 | A microprocessor having a zero status flag. | A microcontroller has no zero flag. |
| 7 | It is mainly used in personal computers. | It is mainly used in washing machines, air conditioners etc. |
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