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1984年底全国较多高等院校相继购买了日本松下原装PANASONIC JB-3000微机（以下称JB-3000机）作为教学、科研用机。经过几年使用后普遍反映其硬件质量还是很好的,但随着IBM PC/XT/AT以及各种兼容微机（以下称IBM机）在我国的迅速普及,与之相适应的软件广泛使用,JB-3000机与IBM机软件的不兼容就成为突出的问题。JB-3000机和IBM机使用的都是5.25”的48TPI磁盘,但同样规格的磁盘在JB-3000机上格式化后的容量是720KB,而在IBM机上却是360KB,因此IBM机的磁盘不能在JB-3000机上直接使用。虽说通过执行JB-3000机磁盘上的COPY59文件可将IBM机磁盘上的文件拷贝到JB-3000机磁盘上来使用,但对操作者来说较为麻烦,而且被拷贝过来的文件还要进行较
By the end of 1984 more colleges and universities have purchased the Japanese original Panasonic PANASONIC JB-3000 microcomputer (hereinafter referred to JB-3000 machine) as a teaching, research machine. After several years of use, it generally reflects its hardware quality. However, with the rapid popularization of IBM PC / XT / AT and compatible microcomputers (hereafter referred to as IBM machines) in China, the software compatible with them is widely used. JB-3000 machine and IBM machine software is becoming a prominent issue. Both the JB-3000 and IBM machines use 5.25 "48TPI disks, but the capacity of the same formatted disk is 720KB on JB-3000 and 360KB on IBM, so the disk on IBM can not be used JB-3000 machine directly used. Although the implementation of JB-3000 machine disk COPY59 file on the IBM machine disk can be copied to the JB-3000 machine disk to use, but the operator is more troublesome, and is copied The documents have to be compared