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National Stock Number:
7025-01-339-1641
Federal Supply Class:
7025
National Item Identification Number:
013391641
Description:
DISK DRIVE UNIT
Detail:
An electromechanical item which accepts and systematically retains digital input data in such a manner as to facilitate the rapid recovery of stored information. The item may or may not consist of disk(s) some of which are removable, hard, removable disk packs, fixed disks, or removable flexible, each surface coated with a material susceptible to spot magnetization, integral writing, a drive motor and its mechanical linkage, and data translating heads for impressing on or removing from the disk surface data in digital form. The item is a component of an electronic computer. See also, MAGNETIC DRUM, DATA STORAGE; CORE MEMORY UNIT.
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Manufacturer Information:
| 712381-003 | 14482 | WATKINS-JOHNSON CO |
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Techincal Specification:
| DRIVE HEIGHT | FULL | | DRIVE QUANTITY | 1 | | DRIVE SIZE | 5.25 | | ACCESS TIME IN MILLISECONDS | 5.0 | | DATA STORAGE CAPACITY | 140.00 MEGABYTES | | DESIGN TYPE | HARD DISK | | HEAD TYPE AND QUANTITY | 15 READ AND 15 WRITE | | OVERALL HEIGHT | 3.250 INCHES NOMINAL | | OVERALL LENGTH | 8.000 INCHES NOMINAL | | OVERALL WIDTH | 5.750 INCHES NOMINAL | | SPECIAL FEATURES | 6.30 LB; USED IN SUPPORT OF A RADIO FREQUENCY TEST SET; ALTERED ITEM,FROM WATKINS-JOHNSON (14482) SOURCE CONTROL P/N 712441-003,VENDOR IS MAXTOR CORP (0FPH6) P/N XT-1140 OR MAX1140; ALTERED TO INCLUDE A YELLOW LIGHT EMITTING DIODE; 5.0 MB PER SEC TRANSFER RATE; ST506/412 INTERFACE; 8 DISKS; INCLUDES 1 SERVO HEAD | | POWER SOURCE | EXTERNAL | | TRACKS PER INCH | 13770.0 | | UNIT DESIGN | INTERNAL | | VOLTAGE IN VOLTS AND CURRENT TYPE | 12.0 DC |
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