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National Stock Number:
7025-01-475-0171
Federal Supply Class:
7025
National Item Identification Number:
014750171
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:
| D3142 | 61892 | NEC ELECTRONICS USA INC MICROCOMPUTER DIV ADVANCED CIRCUITS ENGINEERING |
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Techincal Specification:
| ACCESS TIME IN MILLISECONDS | 8.0 | | DATA STORAGE CAPACITY | 42.00 MEGABYTES | | HEAD TYPE AND QUANTITY | 8 READ/WRITE | | OVERALL HEIGHT | 41.3 MILLIMETERS NOMINAL | | SECTOR TYPE AND QUANTITY | 17 HARD | | SPECIAL FEATURES | ST 506/412 INTERFACE; 62 CYLINDER; 4 PLATTER | | TRACKS PER INCH | 850.0 | | TRANSFER RATE IN MEGABYTES PER SECOND | 5.0 |
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