5360-01-465-4020 SPRING,HELICAL,COMPRESSION Index 7010-01-465-4022 COMPUTER SYSTEM,DIGITAL

National Stock Number:
7025-01-465-4021

Federal Supply Class:
7025

National Item Identification Number:
014654021

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.


Manufacturer Information:
AC312000MZJ1WESTERN DIGITAL CORP


Techincal Specification:
DRIVE QUANTITY1
DRIVE SIZE3.50
ACCESS TIME IN MILLISECONDS10.0
DATA STORAGE CAPACITY1281.00 MEGABYTES
DESIGN TYPEHARD DISK
HEAD TYPE AND QUANTITY6 READ/WRITE
INTERFACE TYPEEIDE
INTERLEAVE RATE RATIO1.0
OVERALL HEIGHT1.000 INCHES NOMINAL
OVERALL LENGTH5.750 INCHES NOMINAL
OVERALL WIDTH4.000 INCHES NOMINAL
OPERATING TEMP RANGE+41.0 TO 140.0 FAHRENHEIT
POWER SOURCEEXTERNAL
TRANSFER RATE IN MEGABYTES PER SECOND12.2
UNIT DESIGNINTERNAL
UNPACKAGED UNIT WEIGHT1.250 POUNDS
VOLTAGE IN VOLTS AND CURRENT TYPE12.0 DC


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