DIFFERENCES BETWEEN MICROCONTROLLER AND MICROPROCESSOR :

• Microprocessor has many instructions for moving data from external memory to internal memory. But microcontrollers have a few such instructions.
• Microprocessors have less bit handling instructions, but microcontrollers have many such instructions.                                                  
• Microprocessors are concerned with rapid movement of code and data from external memory. But microcontroller is concerned with that of bits within the chip.
• Microprocessor needs additional chips for memory, parallel port, and timer, on the other hand microcontroller needs no such external ports.