||NigDOS 2.24||1988||?||||1||7|| Link Required
|-
||[[ParaDOS|ParaDOS]]||?||[[Executioner|Executioner]]||||1||7 or smaller|| Link Required[http://www.winape.net/download/Parados.zip ParaDOS 1.1]
|-
||[[RDOS|RDOS]]||1988||[[Dobbertin|Dobbertin]]||smaller than any other installed DOS||1||7|| [[Media:RDOS-EXT.ROM|ROM file, local mirror]]