The Filesystem, Version 1
What is a filesystem?
As far as your drive is concerned, there is no such thing as a "file" or "folder".
Drives divide up their space into equally-sized sectors
, 512 bytes each.
(This number, 512 bytes, originates from the sector size on floppy disks.
Modern drives have larger sectors behind the scenes.
However, drivers send commands to the drive controllers with a precision of 512-byte blocks.
As far as the filesystem driver should be considered, sectors are
512 bytes each.)
This isn't very useful for users.
They want to have hierachical folders which contain files, ...
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