High Quality Content by WIKIPEDIA articles! The IBM 2365 Processor Storage was a component of the IBM System/360 models 65,67, 75 and 85 computers. Storage was implemented using magnetic cores, and the storage width was 72 bits, which comprised 64 data bits (8 bytes, or one doubleword) plus 8 parity bits. The IBM 2365 model 1 contained 131,072 bytes of memory; all other models contained 262,144 bytes. The model 2 could be converted in the field to a model 13.