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National Stock Number:
7025-01-130-1320
Federal Supply Class:
7025
National Item Identification Number:
011301320
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:
| 0N239314-1 | 98230 | NATIONAL SECURITY AGENCY | | MU-749/G | 80058 | JOINT ELECTRONICS TYPE DESIGNATION SYSTEM |
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Techincal Specification:
| SPECIAL FEATURES | MAXIMUM CYCLE TIME,FULL CYCLE 3.35 MICROSECONDS; SPLIT CYCLE 3.5 MICROSECONDS; MAXIMUM READ ACCESS TIME IS 2.1 MICROSECONDS; MODES OF OPERATION ARE CLEAR-WRITE,READ-RESTORE,READ-MODIFY-WRITE; READ-PAUSE-RESTORE; RANDOM ACCESS MEMORY ADDRESSING; LOGIC IS TTL INTEGRATED CIRCUIT SERIES; INPUT LEVELS HIGH(FALSE) 2.5 V TO 5.5 V,LOW(TRUE) 0.0 V TO 0.6V; OUTPUT LEVELS HIGH 2.4 TO 5.0 V; LOW 0.0V TO 0.6 V; OPERATING POWER AC,95 TO 135 V,SINGLE PHASE,47-63 HZ,20 AMPS AT 115 V AC; 0/A DIMS. 22.75 IN. L X 19 IN. W X 26.5 IN. H. 150 LBS.,RACK MTD | | TEST DATA DOCUMENT | 98230-0N239314 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
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