microprocessor:
1 general purpose digital computer
2 many operational codes for moving data from external 
memory to cpu
3 rapid movement of code and data from externel address to 
chip

microcontroller
1 specific purpose digital computer
2 one or two codes for moving data from external memory to 
cpu
3 rapid movements of bits within the chip

Microprocessor:-1.The ability to execute a stored set of 
instructions to carry out user defined tasks. 
                2.The ability to be able to access external 
memory chips to both read and write data from and to the 
memory. 

Microcontroller:-A microcontroller is a device which 
integrates a number of the components of a microprocessor 
system onto a single microchip. 

So a microcontroller combines onto the same microchip :