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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. All models other than the model 1 consisted of two memory stacks. Addressing for the stacks was interleaved, so the first 64-bit word was in one stack, the second in the other stack, and so forth. This improved performance when doing sequential access. All models other than the model 5 had a cycle time of 750 nanoseconds. ==Models== The various models were used as follows: * Model 1 was used on the System/360 model 65 when not used as a multiprocessor. * Model 2 was used on the System/360 models 65 (when not used as a multiprocessor) and 67-1. * Model 3 was used on the System/360 model 75. * Model 5 was used on the System/360 model 85. * Model 12 was used on the System/360 model 67-2. * Model 13 was used on the System/360 model 65 when used as a multiprocessor. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IBM 2365 Processor Storage」の詳細全文を読む スポンサード リンク
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