system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Fat32 vs. NTSF

Like I'm *five* please.
gpt
A file system consists of two parts: a map of where all the files are, and then the actual contents of the files. FAT32 and NTFS are two different ways of storing the map data.

NTFS's map structure has a bunch of benefits over the one used in FAT32. For one thing, FAT32 only uses 32 bits (binary digits) to store the file size which means it can't represent files larger than 4GB (which is 32 1s in a row in binary- the maximum number you can represent). NTFS uses 64-bits to describe the file size so it can have a maximum file size of about 16 Exabytes (about 16 million terabytes). There's a similar limitation on the maximum hard drive size- FAT32 can only support 2TB drives, NTFS can support up to 256TB right now and that can be extended in the future.

There's also some other things that users won't notice as much happening behind the scenes. The structure NTFS uses is less prone to getting messed up than FAT32's structure. And NTFS supports some really awesome features that are cool for developers but don't matter to much to you, which enables things like Windows 8's OneDrive integration (as far as every program on your computer is concerned, the files look like they're on the hard drive but they aren't actually downloaded until you open them the first time).