There should nothing be confused about “PC”.
I met the several people thinks all are PC but that not what supposed to be classifies different o/s in one group.
There are two different systems or devices Apple and PC both are personal computer expect the o/s version. You can see the any store that provide where all magazines section or box. There are magazines are say, “PC WORLD” and “MAC WORLD”. So, there are different about that format of o/s version for each. I don’t say PC or MAC because all o/s versions are different in each machine. For example, I say Windows and that gone to MAC or PC? Remember the MAC provides the access PC application program run with Windows into MAC machine. So, I normal say, “I am using the Dell with Windows XP.” The people should know where that format of o/s came from machine.
It seems the people might lack to understand from old fashion to new fashion. Sometime the people doesn’t read the idiot book, “How to using Computer!” They just go ahead and using the computer until the error message, “WTF!”
Beside that all are PC to me anyway.