What are the sources of communication for a typical microprocessor 8085 to communicate with memory & devices?

What are the sources of communication for a typical microprocessor 8085 to communicate with memory & devices?

a. Address Bus
b. Data Bus
c. Control Bus
d. All of the above

Correct Answer : d. All of the above

Explanation :

Address Bus helps to allocate the unique address on bus basically consisting of 16 bits in an uni-directional manner. Data bus helps to carry the data in binary form between microprocessor and the memory type of other units related to it along with the variation in the size of about 8 to 16 bits. Specific controlling functions like read/write are to be carried by control bus in unidirectional as well as bi-directional mode.