While the bit about file interoperability may be more windows-specific, there is such a thing as the “PC Ecosystem”. The software has alternatives: dominated by DOS, then Windows, but also available are Linux and the various minor UNIX-likes, but the hardware really is a specific ecosystem based on a specific set of standards.
The way you use “PC” as a synonym for “Windows” proves that you are indeed a long term Mac user.
…and an old fart, hahaha!
At least you didn’t call them IBMs
Of course, they are IBM compatibles!
While the bit about file interoperability may be more windows-specific, there is such a thing as the “PC Ecosystem”. The software has alternatives: dominated by DOS, then Windows, but also available are Linux and the various minor UNIX-likes, but the hardware really is a specific ecosystem based on a specific set of standards.