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National Stock Number:
7025-01-463-7350
Federal Supply Class:
7025
National Item Identification Number:
014637350
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:
| AC313000 | 0MZJ1 | WESTERN DIGITAL CORP | | AC38400 | 52840 | WESTERN DIGITAL CORP | | WDCAVIARAC38400 | 52840 | WESTERN DIGITAL CORP | | AC38400 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
| DRIVE QUANTITY | 1 | | DRIVE SIZE | 3.00 | | DATA STORAGE CAPACITY | 8455.20 MEGABYTES | | DESIGN TYPE | HARD DISK | | HEAD TYPE AND QUANTITY | 16 READ/WRITE | | OVERALL HEIGHT | 1.000 INCHES NOMINAL | | OVERALL LENGTH | 5.750 INCHES NOMINAL | | OVERALL WIDTH | 4.000 INCHES NOMINAL | | OPERATING TEMP RANGE | +5.0 TO 55.0 CELSIUS | | SPECIAL FEATURES | 40-PIN EIDE INTERFACE; CYLINDERS, LANDING ZONE, AND WPC 16383; ROTARY VOICE COIL ACTUATOR; SIX DATA SURFACES; 512 BYTES PER SECTOR; EMBEDDED SERVO TYPE; AUTOMATIC HEAD PARK; AVG. READ SEEK 9.5 MS; AVG. WRITE SEEK 11.5 MS; TRACK TO TRACK SEEK 2.0 MS; FULL STROKE SEEK 19 MS; AVG. LATENCY 5.5 MS; ROTATIONAL SPEED 5400 RPM; BUFFER 256K DRAM | | POWER SOURCE | EXTERNAL | | SECTOR TYPE AND QUANTITY | 63 HARD | | UNIT DESIGN | INTERNAL | | UNPACKAGED UNIT WEIGHT | 1.100 POUNDS | | VOLTAGE IN VOLTS AND CURRENT TYPE | 5.0 DC AND 12.0 DC |
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