Kernel-wise, there isn't much common code between OS/2 and NT. Windows NT 3.1 is more like VMS with the Windows graphical subsystem ported on top of it.
But yes, running OS/2 was fun days, much better than Windows 3.11 (if you had memory enough).
But yes, running OS/2 was fun days, much better than Windows 3.11 (if you had memory enough).
Windows NT has ALWAYS been based on Dave Cutler's code, which shares a lot with VMS, because he architected that as well.
Windows 3.0 and 3.1, the non-NT flavors, ran on DOS.
Windows 3.11 added networking to Windows 3.1, and was wildly successful. Google Windows for Workgroups.