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世界双面8英寸软磁盘销售量1981年为7.672亿盒,1982年猛增到10.8亿盒。5.25英寸单面软磁盘市场发展也很迅速,1981年世界销售量为3.286亿盒,1982年
The sales volume of double-sided 8-inch floppy disks in the world was 767.2 million in 1981 and soared to 1.08 billion in 1982. 5.25-inch single-sided floppy disk market is also very rapid development in 1981 the world sales of 328.6 million boxes, 1982