The IBM PC is 25. And here are the top PCs ever, from machines you owned and loved to systems you’ve never heard of.
PC World – The 25 Greatest PCs of All Time (click for link)
I can’t beleive they forgot the original NeXT computer from 1987. I mean for crying out loud, the NeXTStep/OpenStep operating system it used is the basis for every modern Macintosh running Mac OS X.