== Manual ==
* [[Media:Vortex SP 512 kb RAM Expasion Manual.pdf|Vortex SP 512 kb RAM Expasion Manual]] (pdf) (german)(August 1985)* [[Media:Vortex RAM Expansions SP64-SP512 User Handbook (English) (Screens Microcomputer Distribution Ltd).pdf]] (pdf) (english) (Oct 1985)
Note: Above is the original manual for BOS 1.0, not containing info on newer version(s) like BOS 2.1.