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| The two-by-four-inch IBM Data Cartridge,
a basic component of the IBM 3850 Mass Storage System
announced in October 1974, combined the storage
techniques of magnetic tape and disk drives. The
cartridge contained approximately 770 inches of
magnetic tape where information was stored in the
familiar format of IBM's 3336 disk packs -- giving
the tape medium the random access characteristics
of disk drives. Two cartridges could hold up to
100 million characters of information, equivalent
to one disk pack. |
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