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(1) (DIR) (Digital Instrumentation Recorder) An earlier 19mm, helical-scan magnetic tape technology from Sony, earmarked end of life in 2004. Based on the D1 format, DIR was fast enough for sonar, radar and other high-speed data archiving. Cassettes came in 8.7GB, 43GB and 96GB capacities. Once a standard in the U.S. government, DIR was gradually replaced by LTO and SAIT technologies. See DTF, LTO, AIT and magnetic tape.

DIR Cassettes Were Huge
Next to the 4mm DAT cassette, the 96GB DIR cassette was enormous.

(2) (DIRectory) A DOS/Windows internal command that lists the file names on disk. Originating with the CP/M operating system, Dir is widely used by Windows programmers and power users. Following are various examples:
dir        names, date and size

 dir /w     no date and size

 dir /p     pause each screenful

 dir /ad    only folders

 dir *.     only folders plus files
             without extensions

 dir *.jpg  all files
 dir *.mp3   of a
 dir *.doc   certain
 dir *.exe   type

dir /o     folders, then files

 dir /oe    by extension a to z
 dir /o-e   by extension z to a

 dir /os    small to large
 dir /o-s   large to small

 dir /od    earliest to latest
 dir /o-d   latest to earliest

dir /ar    read only files
 dir /ah    hidden files
 dir /aa    files to be archived
 dir /as    system files

The following example finds all files named X.BAT anywhere in the C: drive, because the command is initiated at the root of the drive (C:\>):
     C:\>dir x.bat /s
References in periodicals archive ?
He said classes in Dir Engineering University Campus would be started from the next session that would provide high education facilities to the local students at their doorsteps.
SPACE AS A PREMONITION (Kosmos kak predchuvstvije), Dir.
6) Shadow of the Vampire--La sombra del vampiro--(2000) Dir.
Box 580466; Houston, TX 77258 Lynette Mason Gregg, Dir.
com CEO: Roger Underwood Pres: Peter Innes Natl Sales Mgr: Bill Romp Dir Mktg & Comms: Peter Innes HR: Jill Legg Products: Seed enhancements, beneficial nematodes, turf & ornamental, landscape coatings Ad and PR agency: Swanson Russell
DIR claimed the employees worked for off-reservation businesses of the employers and not the tribe.
Pres: Jeff Lapin Dir, Regional Bus Dev: Jim Kanter (jkanter@farmprogress.
During the course of construction, DIR was asked to determine the public works status of the project under Labor Code section 1720.
Mkt Dev: Kevin Murphy Cps Mgr: Ramona Rei Dir Audience Mgmt: Al Fagen Publications: Pork, Dairy Herd Management, Bovine Veterinarian, Swine Practitioner, Meat & Seafood Merchandising, Drovers, Food Systems Insider, AgProfessional, AgLender, The Grower, Citrus & Vegetable, Greenbook & Ornamental Ref Guide, Greenbook MSDS, Greenbook Crop Protection Reference, The Packer, Produce Merchandising, Doane's Agricultural Report, Ag Serve Sales rep: In-house
DIR today filed the proposed permanent regulations, which vary only slightly from the proposed emergency regulations filed on December 10, 2004, with the Office of Administrative Law.