||[[ROMDOS|Rom DOS]]||1988||[[KDS|Kds Electronics]]||||1||7|| Link Required
|-
||[[ROMDOS|Rom DOS XLv4.0]]||1992||[[Siren_Software|Siren Software Ltd]] - [[KDS|Kds Electronics]]||||1||7|| Link Required[[media:Rdosxl40.zip|ROM DOS XL 4.0 ROM]]
|-
||[[ROMDOS|Rom DOS XL v4.88]]||1993||[[Siren_Software|Siren Software Ltd]]||||1||7|| Link Required[[media:Rdosxl48.zip|ROM DOS XL 4.88 ROM]]
|-
||[[VDOS|VDOS]]||1985||[[Vortex|Vortex]]||Provides 0.7 MB on B||1||7 or Lower|| Link Required