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National Stock Number:
7025-01-463-9374
Federal Supply Class:
7025
National Item Identification Number:
014639374
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:
| 842836-2 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 842836-2 | 13973 | LITTON SYSTEMS INC. DIV NAVIGATION SYSTEMS DIVISION |
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Techincal Specification:
| DRIVE QUANTITY | 1 | | ACCESS TIME IN MILLISECONDS | 2.0 | | DATA STORAGE CAPACITY | 260.70 MEGABYTES | | DESIGN TYPE | HARD CARD | | HEAD TYPE AND QUANTITY | 4 READ/WRITE | | INTERFACE TYPE | IDE | | OVERALL HEIGHT | 0.413 INCHES NOMINAL | | OVERALL LENGTH | 3.370 INCHES NOMINAL | | OVERALL WIDTH | 2.130 INCHES NOMINAL | | OPERATING TEMP RANGE | +5.0 TO 55.0 CELSIUS | | POWER SOURCE | EXTERNAL | | SPECIAL FEATURES | PCMCIA TYPE III (IDE/ATA) INTERFACE; TWO DISKS 1.800 INCH DIA; RECORDING DENSITY 112,500 BPI MAXIMUM; BUFFER SIZE 32.0 KB; AVERAGE SEEK TIME 12.0 MILLISECONDS; NON-OPERATING TEMPERATURE MINUS 40.0 DEG TO PLUS 70.0 DEG C; RELATIVE HUMIDITY 4.0 PERCENT TO 90.0 PERCENT NON-CONDENSING; MECHANICAL SHOCK WHEN IDLE MINIMUM 200.0 G'S; ALTITUDE WHILE OPERATING IS MINUS 1,000.000 TO PLUS 10,000.000 FT, NON-OPERATING IS PLUS 40,000.000 FT | | TRACKS PER INCH | 4300.0 | | TRANSFER RATE IN MEGABYTES PER SECOND | 4.0 | | UNIT DESIGN | PORTABLE | | UNPACKAGED UNIT WEIGHT | 0.197 POUNDS | | VOLTAGE IN VOLTS AND CURRENT TYPE | 5.0 DC |
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