PC-MOS/386
              < PC-MOS 
 
            
          | A screen-print of the PC-MOS-386 startup screen | |
| Developer | The Software Link | 
|---|---|
| Written in | 80x86 assembly language, C | 
| OS family | DOS | 
| Working state | Active | 
| Source model | Open source | 
| Initial release | 1987 | 
| Latest release | 5.01 | 
| Repository | |
| Available in | English | 
| Platforms | x86 architecture | 
| Kernel type | Monolithic | 
| Influenced by | MS-DOS | 
| Default user interface | Command-line interface (COMMAND.COM) | 
| License | GPL-3.0-only | 
| Official website | Github | 
PC-MOS/386 is a multi-user, multitasking computer 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 programs 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. PC-MOS/386 used to be proprietary, but it was released as open-source software in 2017.