I loved OS/2. Back in the '90s I ran the later OS/2 Warp version and it was pretty solid. I remember running a BBS in a window and was still able to use the OS

I loved OS/2. Back in the '90s I ran the later OS/2 Warp version and it was pretty solid. I remember running a BBS in a window and was still able to use the OS for other things. Multitasking like that was still a novel thing back then.