Question

Suppose a computer architecture allows for 32 bit addresses, how many memory cells can be addressed at most in this system?

Answer 1

$$2^{32} = 4,294,967,296$$

Answer 2

Thanks!

Is this the same or different than how large the memory space is?

Answer 3

Well, if we're speaking in terms of 'cells' then yes, you can't access any more than \(2^{32}\) cells in such an architecture.
Now theoretically the cell size could change, and be a bigger memory unit. In practice the cell size is always in size of 8bits today.

Answer 4

If by 'memory space' you mean 'address space':
http://en.wikipedia.org/wiki/Address_space
Then the cell size doesn't matter at all, and yes it is essentially the same =)