||[[RDOS|RDOS]]||1988||[[Dobbertin|Dobbertin]]||smaller than any other installed DOS||1||7|| [[Media:RDOS-EXT.ROM|ROM file, local mirror]]
|-
||[[RODOS|RoDOS v2.11]]||19xx||[[Romantic_Robot|Romantic Robot]]||||1||7|| Link Required
|-
||[[RODOS|RoDOS v2.15]]||19xx||[[Romantic_Robot|Romantic Robot]]||||1||7|| Link Required
|-
||[[ROMDOS|Rom DOS]]||1988||[[KDS|Kds Electronics]]||||1||7|| Link Required