信息处理 数据交换用130mm双频制记录的位密度为7958 磁通翻转/弧度、道密度为1.9道/毫米的单面软磁盘 第一部分:尺寸、物理性能和磁性能
Information processing—Data interchange on 130mm flexible disk cartridges using two-frequency recording at 7958 ftprad, 1.9tpmm, on one side—Part 1:Dimensional, physical and magnetic characteristics