EXT

EXT stands for Extended File System and is the file system used with Linux operating systems. A file system is how an operating system keeps track of where individual files are on a hard drive. The most common versions of EXT used are ext2 and ext3. Ext3 is just ext2 with journaling. Journaling is a process where the file system writes any changes made to a journaling log first and then implements them in the file system. This helps preserve changes in the event of a power failure or other problem. The IT-100 uses ext3 as its file system. See the terms FAT32 and NTFS in this glossary for more information.