More formally known as the IBM 5150, Big Blue's first Personal Computer was a blockbuster that signaled the end of the early, days of the computer revolution. It's no coincidence that nearly all of the most valuable antique PCs predate the original IBM PC. Lots of original examples are still out there for people who'd like to own the great-granddaddy of today's Windows Vista boxes. But it's also possible to get a taste of the vintage IBM PC experience simply by running ancient software such as Visicalc or Basic on your current personal computer.

