When doing the Operating and File Systems course, I took it upon me to go more into depth with what the technical difference between 32-bit systems and 64-bit systems.
From before I had learned the hard way that different operating systems have different limits for how much memory it can handle. When I purchased my first Windows 7 license a while back, after years of just using OSX, I thought I did not need more than the Home Edition.To my frustration, I learned that the max limit for Win7 Home was a weak 16 GB! Which meant that I could not use my 32 GB of new memory.
Now, 32-bit systems have the same type of limitation no matter what operating system you are using. The max limit is 4GB of memory, whilst 64-bit systems like the Windows 10 Enterprise version has a limit of whopping 2000GB.
Instead of me going on and on explaining how bits work, I can just say that if you have the hardware to take it, and the software to deal it, it can prosess way more data. Having a 64-bit system just means it can utilize the extra hardware capabilities. To read more on the tech spesifics on this, take a look her: http://www.digitaltrends.com/computing/32-bit-64-bit-operating-systems/