[[Image:K-os.jpg|thumb|K-OS has set up of HJT in the early 90s]] '''K-OS''' (Andreas Erler) from Isny (Germany) was a swapper of the german CPC scene. He also managed a huge public domain library. == Groups == *[[Public DomainBENG!|BENG!]] *[[HJT|HJT]] [[Category:CPC_scene_members]] Library in germany