Windows operating system的用法和樣例：
例句
- Microsoft makes most of its money from selling its Windows operating system and business software.
微軟公司的絕大部分利潤來自於視窗操作系統和商業軟體的銷售。 - He developed the business model that put the Windows operating system on about ninety percent of the world's one billion PCs.
他發展了一種商業模式使視窗操作系統約佔據了全世界十億台個人電腦的百分之九十。
