Hello,
As far as I am aware, there isn't any functional difference to the end user.
Quick Formatting simply clears the file table. Doesn't zero out any data. I am not positive if the other types of format zero out the data or not. If you had to securely delete something, you would want a program that goes out and flips the bits in the filespace to a random pattern to zap the data.
In normal file systems, when you delete a file, you merely remove it from the "table of contents" so that the OS no longer knows where it is. Thus, the space will be used some time in the future, when the OS needs it.
Now, there are Differences in how each of the systems above PARTITION a hard disk.
DOS will use FAT16, or sometimes FAT. Windows, depending on the version, may have FAT32 or NTFS. These partition schemes affect the security of the volume, along with how many files and how large the volume may be. DOS is unable to see NTFS filesystems unless special software is used. Linux has a hard time working with NTFS for writing to the volume, although there are work-arounds being developed.
Christian
Reputation Points: 121
Solved Threads: 57
Posting Virtuoso
Offline 1,629 posts
since Mar 2004