Early Windows PC.
Just kidding.
I started with a CPM machine, then to DOS and Windows before I decided I had better things to do with my time allocating memory and spending days getting SCSI devices to work with a PC. I gave up and went to the MAC platform when Windows 3.11 was the rigeur.
Still, the three PCs in our household (kids and spouse) seem to be holding up fine (especially the XP versions); so I say, go with a current PC (they're cheap and seem to be faster on the internet) or a MAC (great interface). You won't lose with either one although fending off the latest Windoz viruses can take a toll on your patience.
MHO,
Sherwood