IBM 2395 Processor Storage
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The IBM 2395 Processor Storage is a memory storage unit that was a component of the IBM System/360 Model 91[1] and Model 95.[2]
Despite the name, IBM 2395 Processor Storage was used for more Model 91s than for Model 95s; the Model 95 used thin-film memory for the first 1MB of memory, and only two Model 95 machines were produced.[3][4]