As far as computer operating systems go, Microsoft is king.

一谈到电脑操作系统，我们都会认为微软是王者。

youdao

Applications software is distinguished from computer operating systems.

应用软件不同于计算机操作系统。

youdao

But Apple's iPhone and computer operating systems are both based on the Unix operating system.

但是苹果的iPhone和电脑操作系统是基本unix操作系统的。

youdao

Most computer operating systems and software in Swahili-speaking areas are in English or French.

BBC: Word processing in Swahili

Already advanced speech recognition systems can be found in smartphones and most modern computer operating systems.

BBC: Why do we all use Qwerty keyboards?

Computer operating systems make more money from users than from software developers.

ECONOMIST: Economics focus