DEC Head Disk Assembly (HDA)

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  • Description
Date Introduced
1981 ca.
Photographer
Richards, Mark
Dimensions
overall: 6 in x 18 in x 16 in
Manufacturer
Digital Equipment Corporation (DEC)
Credit Line
Gift of F. Grant Saviers
Copyright Owner
© Mark Richards
Location
US
Keywords
Electronics; Minicomputers; mechanical; magnetic
Object ID
102626588
Memory Type
Magnetic disk

The 120MB RA80 was DEC's first large capacity fixed disk drive, using a “clamshell” hard disk assembly (HDA) with a unique moving magnet actuator. These drives were mass storage for DEC's PDP-11, VAX, and DEC-10 systems.