MSX-DOS
| Developer | Microsoft Japan | 
|---|---|
| OS family | DOS | 
| Working state | Abandoned | 
| Source model | Closed source | 
| Initial release | 1984 | 
| Marketing target | Home computers | 
| Available in | English | 
| Platforms | MSX home computer architecture | 
| Kernel type | IO.SYS (Monolithic kernel) | 
| Default user interface | Command-line interface (COMMAND.COM), Text user interface | 
| License | Proprietary | 
MSX-DOS is a discontinued disk operating system developed by Microsoft's Japan subsidiary for the 8-bit home computer standard MSX, and is a cross between MS-DOS v1.25 and CP/M-80 v2.2.