High Quality Content by WIKIPEDIA articles! The invention of magnetic disk storage, pioneered by IBM in the 1950s, was a critical component of the computer revolution. This article describes some (but not all) of the disk drives introduced by IBM from 1956 through 1993. The basic mechanical arrangement of hard disk drives hasn't changed since the IBM 1301. Disk drive performance and characteristics are measured by the same standards now as they were in the 1950s.

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