Ext2fs The Second Extended Filesystem (ext2fs), lacks journal
Ext3fs The Third Extended Filesystem (ext3fs) is essentially ext2fs with a journal.
Ext4fs The Fourth Extended Filesystem (ext4fs) adds speed improvements and the ability to handle larger files and disks—files may be up to 16 TiB in size, and filesystems may be up to 1 EiB (2(exp)60 bytes).
ReiserFS This filesystem is similar to ext3fs in features, with an 8 TiB file-size limit and 16 TiB filesystem-size limit. Its best feature is its capacity to make efficient use of disk space with small files — those with sizes measured in the low kibibyte range.
JFS – IBM developed Journaled File System (JFS) for its AIX OS. JFS supports maximum file and filesystem sizes of 4 PiB and 32 PiB, respectively (1 PiB is 1024 TiB).
Btrfs This new filesystem (pronounced “butter-eff-ess” or “better-eff-ess”) is intended as the next-generation Linux filesystem. It supports files of up to 16 EiB and filesystems of the same size. It also provides a host of advanced features, such as the ability to combine multiple physical disks into a single filesystem.
FAT The File Allocation Table (FAT) filesystem was the standard with DOS and Windows through Windows Me. Just about all OSs support it. It is case-insensitive!!
NTFS Microsoft developed the New Technology File System (NTFS) for Windows NT, and it is the default filesystem for recent versions of Windows. Linux provides a limited read/write NTFS driver, and a full read/write driver is available in the NTFS-3g software.
HFS – Apple used its Hierarchical File System (HFS) in Mac OS through version 9.x
HFS+ – Apple’s Mac OS Extended, it is the current filesystem for Mac OS X.
ISO-9660 This filesystem is used on optical media, and particularly on CD-ROMs and CD-Rs.
UDF – The Universal Disk Format (UDF) is a filesystem that’s intended to replace ISO-9660. It’s most commonly found on DVD and Blu-ray media.