from HowToGeekBe-OK wrote:PC= Personal Computer NOT Window Computer aka WC
“PC” originally meant “IBM PC-compatible.” These were computers that were compatible with IBM’s PC architecture. They had a BIOS and could run all the same operating systems, like IBM’s PC-DOS and Microsoft’s MS-DOS. This was a standard architecture computers could conform to so they’d be compatible with the software that ran on other IBM PCs or IBM PC-compatible PCs. IBM no longer makes PCs, so this description isn’t accurate.
In today's society PC generally does refer to computers in general, but culturally and historically PC is synonymous with Windows because of the compatibility context.In the past, a Macintosh’s hardware was very different from a PC’s. Where those Wintel PCs had Intel x86-compatible chips inside, Macs had PowerPC chips. PowerPC was a completely different architecture, so Windows just couldn’t install on a Mac, and Mac OS just couldn’t install on a PC. The difference wasn’t just the operating system, it was the architecture. That’s why a computer that came with OS/2 or BeOS could be considered a PC, but a Mac wasn’t a PC — it wasn’t “PC-compatible.”