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1 前言为了扩充DIPS系统硬设备的功能,有必要研制性能更高且更经济的外存储装置。为此,从1971年8月起日立、富士通、日电三公司着手研制改进型磁盘存储器,于1973年10月完成。改进型磁盘存储器的总水平相当于IBM3330型磁盘。改进型磁盘装置的性能同DIPS-1过去所用的磁盘装置的比较见表1。图1是磁盘装置外观(略,见原文),图2是其功能框图。
1 Introduction To expand the capabilities of DIPS system hard devices, it is necessary to develop higher performance and more economical external storage devices. To this end, from August 1971 Hitachi, Fujitsu, Japan’s three companies to proceed with the development of improved disk storage, completed in October 1973. The overall level of improved disk storage is equivalent to the IBM 3330 disk. The performance of the improved disk device is compared with the disk device used by DIPS-1 in the past. Figure 1 is the appearance of the disk device (slightly, see original), Figure 2 is a functional block diagram.