I remember when I didn’t know the difference between an Apple and an IBM clone/compatible computer, or know which one to buy.

我记得那个时候我不知道苹果电脑和IBM兼容电脑的区别、不知道该买哪一个。

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