From LQWiki
VFAT is a updated version of the FAT filesystem for Windows. VFAT's updates are mainly support for longer file names, better performance, and better disk management.
Compared to newer filesystems like JFS or ReiserFS, VFAT is an out of date filesystem. It's commonly used on small devices, like floppies, or temporary drives, like a flash memory drive. Its main use is being fully supported by Linux, and Windows, making it important as a in-between for people that dual boot both Windows and Linux.
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