richcon said:
Last I checked, Window Vista is simply the latest version of a series of Microsoft operating systems that started with MS-DOS, which was commissioned by IBM and first shipped in 1982 on the IBM PC. Yes, the underlying technology has changed quite a bit, but that's what happens to a platform that's over 27 years old. :)
But this is the fundamental mistake you are making. A computer being "IBM PC Compatible" has nothing to do with the OS or software. It's about the hardware.
As stated in the article I quoted - it was all about being "compatible with IBM's specifications." This has been entirely irrelevant for a long time now. IBM doesn't write the specifications for PCs today. These days it's more about Intel, but even then there are PC processors by AMD and others. It's quite amorphous, and what's supported is based largely on consensus with Intel, Microsoft, AMD, graphics card manufacturers, and various other standards and industry bodies.
As for the idea that being a PC means being compatible with Windows, a few things:
1. Apple uses Intel processors and architecture that can run Windows. So, isn't a Mac a PC? Modern Intel Macs are as much related to the original IBM PC as any modern "Windows PC" is.
2. PC hardware can run Linux and other Operating Systems. If I buy a PC from HP, then remove Windows and install Linux, does it suddenly become not a PC? I assure you that Linux users refer to their machines as PCs.
3. IBM themselves made an alternative OS to Windows for the IBM PC, it was called OS/2. I don't think that buying an IBM PC from IBM that was shipped with OS/2 instead of Windows made it not a PC.