From the article:
In the strictest definition, a PC was an IBM PC running PC-DOS on an Intel x86 processor. That would later expand to a PC-compatible machine running MS-DOS on an x86 CPU. These days, Id say, the definition is pretty liberal: any x86 or x86-64 machine running a stand-alone x86-compatible operating system. It doesnt even mean you have to run a Microsoft OS, but you should be able to install any compatible OS you want. After all, a ThinkPad running Ubuntu is as much a PC as a corporate Wintel box. And yes, I think that x86 boxes with secure UEFIs that dont let you install Linux or other alternative OSes fail to live up to the definition of a PC. And yes, the Mac is just an overpriced PC.
How does my litmus test work on todays hardware? Lets see. Is the iPad a PC? No, its not x86 and its pretty well locked down. Is it a personal computer? Yes. Is a Citrix terminal running Windows XP remotely a PC? No. Is it a personal computer? No, its a terminal. Is your smartphone running Android 4.1 a PC? No. Is it a personal computer? Yes. Is a Windows 8 Pro convertible tablet a PC? Yes. Is Microsofts Surface RT tablet running Windows RT a PC? No. Is it a personal computer? Yes. Is a Google Chromebook a PC? If its x86, then yes, but not when its running Chrome OS. Why not? Chrome OS is far closer to being a terminal than a personal computer.
I used to agree with this assessment, but over the last year or so, after using my tablets (Android and iPad) and my smartphone as much or more than my home PCs (not including work PC here), I've come to the conclusion that MY definition of a PC has changed. I probably argued against this in another thread, but I'm now in the camp that agrees that Apple is the largest PC maker, on the strength of their mobile devices.
What say you? Should make for some interesting Friday chatter :D