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National Stock Number:
7025-01-499-4377
Federal Supply Class:
7025
National Item Identification Number:
014994377
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:
| P-300012 | 2C063 | OSI MARITIME SYSTEMS LTD | | P-300012 | Z1V65 | L-3 COMMUNICATIONS OCEANIA PTY LTD | | WD800BB | 52840 | WESTERN DIGITAL CORP |
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Techincal Specification:
| DRIVE QUANTITY | 1 | | ACCESS TIME IN MILLISECONDS | 8.9 | | DATA STORAGE CAPACITY | 80.03 MEGABYTES | | DESIGN TYPE | HARD DISK | | HEAD TYPE AND QUANTITY | 16 READ/WRITE | | INTERFACE TYPE | EIDE | | OVERALL HEIGHT | 1.028 INCHES NOMINAL | | OVERALL LENGTH | 5.787 INCHES NOMINAL | | OVERALL WIDTH | 3.990 INCHES MINIMUM AND 4.010 INCHES MAXIMUM | | POWER SOURCE | EXTERNAL | | SPECIAL FEATURES | ROTATIONAL SPEED 7,200 RPM;BUFFERSIZE 2 MB;BUFFER TO DISK 525.0 MBITS;NUMBER OF PLATTERS - 3; CYLINDERS - 16,383; FORMATTED CAPACITY 80,026 MB; SERVO TYPE - EMBEDDED; ACTUATOR TYPE - ROTARY VOICE COIL; WRITE SEEK TIME - 10.9 MS (AVERAGE) | | TRACKS PER INCH | 63.00 | | UNIT DESIGN | DESK TOP | | UNPACKAGED UNIT WEIGHT | 1.320 POUNDS |
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