Marko Jahnke · @markojahnke
66 followers · 227 posts · Server bonn.social
2000-2001, we developed the first web based mobile #GUI for the #X400 dinosaur 😆 .
The screenshots show it on early #WindowsMobile and #PalmOS.
#gui #X400 #windowsmobile #palmos #vintagecomputing
Marko Jahnke · @markojahnke
66 followers · 227 posts · Server bonn.social
#ISO #X400 #MHS (Message Handling System). What an anachronism.
1999-2000, we implemented the #PCT (Protected Content Type) Standard that was basically equivalent to integrity protection an digital signatures w/ X.509 certificates in S/MIME.
https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-F.400-199906-I!!PDF-E&type=items
#iso #X400 #MHS #pct #vintagecomputing