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根据数据通讯系统中联机存储器大容量低价格的要求,研制成目前世界上记忆容量最大的磁盘记忆装置,每轴容量达800兆字节。该机由于采用了薄磁层涂布介质、接触起停式狭道磁头、内部温度均匀的头盘组件等新技术,使记录密度达到了约9000位/毫米~2,因此磁盘单机容量为原来的四倍。此外还采用了动态交叉调用功能,每台控制器所能控制的轴数增加到32个,使磁盘子系统最大记忆容量提高了一个数量级。本机存取时间缩短到20ms,数据传送速率也提高到1.35MB/S。
According to the requirement of high capacity and low price of on-line memory in data communication system, the disk memory device with the largest memory capacity in the world has been developed, with a capacity of 800 megabytes per axis. The machine due to the use of a thin layer of magnetic coating medium, contact with the start-stop slit head, internal temperature uniformity of the head disk assembly and other new technologies, the recording density reached about 9000 / mm ~ 2, so the single disk capacity of the original Four times. In addition, the dynamic cross-calling function is adopted, and the number of axes that can be controlled by each controller is increased to 32, so that the maximum memory capacity of the disk subsystem is increased by an order of magnitude. The local access time is shortened to 20ms, the data transfer rate is also increased to 1.35MB / S.