#3001 ·
A 32-bit OS theoretically can't address more than 4 GB of RAM. The math is pretty straightforward:
A 32-bit OS => addressing uses a 32-bit binary number => there are 2^32 different combinations of digits in a 32-bit binary number
2^32 = (2^2) * (2^10) * (2^10) * (2^10) = 4 * 1024 * 1024 * 1024 = 4 GB
In short, 32-bit operating systems are ancient history.
(In reality, they can't even hit the full 4 GB, just like Jack said.)
A 32-bit OS => addressing uses a 32-bit binary number => there are 2^32 different combinations of digits in a 32-bit binary number
2^32 = (2^2) * (2^10) * (2^10) * (2^10) = 4 * 1024 * 1024 * 1024 = 4 GB
In short, 32-bit operating systems are ancient history.
(In reality, they can't even hit the full 4 GB, just like Jack said.)