I bought my first IBM PC clone and started designing version 2.0 for it...

我买了我的第一台IBM个人计算机，开始用它来设计2.0版。

youdao

Those companies were able to clone the IBM PC because IBM made the mistake of allowing its partner, Microsoft, to license a virtually identical version of its PC-DOS operating system to any takers.

FORBES: 2012 could be the year of the Apple clones