Head Disk Assembly
Also found in: Medical, Acronyms.
Head Disk Assembly(hardware, storage)
(HDA) A sealed, high capacity mainframe hard disk with integral heads, as opposed to a removable disk.
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HDA(1) See HD audio.
(2) (Head Disk Assembly) The mechanical components of a disk drive (minus the electronics), which include the actuators, access arms, read/write heads and platters.
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