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(EXTended file system) The first file system developed exclusively for the Linux operating system. Introduced in 1992, the limits of the Minix file system originally used in Linux were greatly increased: volume size from 64MB to 2GB, and file names from 14 to 255 characters. Ext also introduced a virtual file system (VFS) interface, which allows different underlying architectures to be used.

ext2, ext3, ext4
In 1993, ext2 added the traditional Unix inode and other features of the Unix File System (see inode and UFS). Maximum volume size jumped to 32TB.

Introduced in 2001, the major enhancement to ext3 was three levels of journaling, the most robust of which duplicates the indexes and file contents in the journal before updating the actual file system (see journaling file system). See file system.

In 2008, ext4 added several enhancements for large files: maximum volume size increased to one exabyte and file size to 16TB.


On drawings, abbr. for “exterior.”
References in periodicals archive ?
One framework, multiple form factors and devices, including desktop and mobile -- that's the promise of Ext JS 5, said Chris Thornhill, Chief Architect at Aptean.
The E6607C EXT wireless communications test set is available for evaluations now, with volume availability expected in the second quarter of calendar 2013.
3012 Highwoods Blvd, Suite 301, Raleigh, NC 27604; 919/876-0674 ext 323, FAX: 919/790-8369
New Orleans VAMC 1601 Perdido, #1-A-108 New Orleans, LA 70146 (504) 568-0811, Ext.
Porous Materials, short course on "Advanced techniques for pore structure characterization," Ithaca, NY, Mindy Durrani (607) 257-5544, ext.
Society of Manufacturing Engineers, seminar on "Ergonomic design guidelines for engineers," Embassy Suites Center City, Philadelphia, PA, Lauralyn McDaniel (313) 271-1500, ext.
25-27 Las Vegas, Nevada Contract: Abel Salas Tel: [1] (310) 453-4440 ext.
Anyone interested in buying tickets or making donations can call Alcuran at Palmdale High School, (805) 273-3181, Ext.
For more information, call (818) 908-8849 or (213) 962-8197, Ext.
For more information regarding the Investor Day please contact Elizabeth Goode, 3D Systems' Director, Corporate Development at 661-295-5600, ext.
First graph after Note to Editors, first sentence, phone number should read: 800-282-6019 Ext.
Steve Holland, President, Fidelity Insurance Service, Berkeley 510-548-8200 ext.