Detailed explanation of address bus, data bus and control bus

From a great God , Learn the relevant knowledge of the three buses together ：
The address bus passes CPU And the graphical representation of memory is more convenient to understand memory



On the premise that the address bus and data bus are the same ,32 position CPU（ The data bus is 32 position ） The maximum supported addressing space is 2^32, That is, maximum support 4G Memory .

such 64 position CPU The maximum memory supported by the theory is （2^32）2 This is an astronomical figure