File Systems

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Conventional File Systems

Used by Apple systems, it has been succeed by HFS+
The Fast File System, a variant of ufs that is faster and supports symbolic links.
ext2fs, ext3
ext2fs was introduced with Linux. ext3 is a journaled version of ext2 which allows for speedy disk recovery after a crash.
A journaling filesystem for Linux
Originally used by MSDOS. Includes FAT12 (for floppy disks), FAT16 and FAT32
The New Technology File System, introduced by Microsoft with Windows NT 4.0. Now used on XP.
The Unix File System, introduced with Unix.

Cryptographic File Systems

Cryptographic file systems encrypt information before it is stored on the media. Some of these file systems store encrypted files directly. Others are better thought of as device drivers, which are then used to store some of the file systems discussed above.

Apple's File Vault
A clever user interface to Apple's encrypted disk images. Uses the ".sparseimage" extension on disk files.
CFS - Matt Blaze's Cryptographic File System for Unix Key Management in an Encrypting File System], Matt Blaze, USENIX Summer 1994 Technical Conference, Boston, MA, June 1994. A Cryptographic File System for Unix], Matt Blaze, Proceedings of the First ACM Conference on Computer and Communications Security, Fairfax, VA, November 1993.

NCryptfs NCryptfs: A Secure and Convenient Cryptographic File System ], Charles P. Wright, Michael C. Martino, and Erez Zadok, Stony Brook University ,USENIX 2003 Annual Technical Conference.

Transparent Cryptographic File System
SFS - Secure File System

Full Disk Encryption

Seagate FDE
Network Appliance
Jetico BestCrypt