The old PC-MOS was released under the GNU GPL this Summer. From Wikipedia:
PC-MOS/386 was a multi-user, computer multitasking operating system produced by The Software Link (TSL), announced at COMDEX in November 1986 for February 1987 release. PC-MOS/386, a successor to PC-MOS, can run many MS-DOS software titles on the host machine or a terminal connected to it. Unlike MS-DOS, PC-MOS/386 is optimized for the Intel 80386 processor; however early versions will run on any x86 computer.
The GitHub project includes a 1.44MB disk image for the latest version that will work under VirtualBox, but does not include older versions of the operating system from before it required an 80386+. The system won’t work properly if you set a modern date at the boot up prompt.
Thats the obvious querstions.
On an 386+ computer, is there PC-MOS 386 or FreeDOS more compatible to MS-DOS and can run more MS-DOS programs?
Existing parts in PC-MOS 386, which can be helpful for FreeDOS, so that FreeDOS can port it to 16bit and using it for an upcomming FreeDOS?
But the second question presuppose developers who still working active on FreeDOS.
But a look at
seems, that the last activity was on May 12th, 2016.
And how helpful could be the code for DOSBox?