RAMAC may refer to:
*
IBM 305 RAMAC, a computing system introduced in 1956
*
IBM 350 RAMAC, a disk storage unit introduced in 1956 as a bundled component of the
IBM 305 RAMAC
*
IBM 650 RAMAC, a computing system consisting of an IBM 650 with an
IBM 355 Disk Storage unit and introduced in 1956
*
IBM 9394 RAMAC Array, a disk storage array and controller unit introduced in 1994 which uses
data striping
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