Growing up using a PC that ran on Windows 3.1, I don't think it ever occurred to me that there was a Windows 2.1. Or 1.0. That was just Windows, until Windows 95 came around a few years later. But ...

When you work on projects on both a Mac and a Windows PC, syncing them can prevent problems of multiple versions or missing files. Laplink recently added Mac support to its PCsync 6.0 sync product ...