Dear group members, I'm posting here for the first time, so first let me introduce myself - my name is Jaroslav Švelch, I'm at Charles University in Prague, working on history of computer games and hobby computing in 1980s Czechoslovakia (and behind the Iron Curtain in general). (A link to one of my articles: http://gamestudies.org/1302/articles/svelch) In my research, I've come across a very popular early 1980s Czechoslovak computer programming learning aid, somewhat similar to Bell Technologies' CARDIAC (http://hackaday.com/2014/10/14/a-clever-cardboard-computer/) or MIT's Little Man Computer. I find it quite fascinating. Do you happen to know any literature (or unpublished knowledge) related to the history of these aids? Thanks! Best, Jaroslav -- ----------------------------------------------------------------------------------- Jaroslav Švelch, Ph.D. New media and digital games researcher (http://svelch.com) Member of the PolCoRe research group (www.polcore.cz) Faculty of Social Sciences Charles University in Prague Phone: +420 773 988 425