Re: Being on a placement myself...
RPGII was a great language - I wrote commercial applications in it for the S/3 Model 6, and Model 15, S/32 , S/34, S/36, RPGIII on S/38 AS/400...Have not used it much since 1993 though. It was brilliant for normal ERP applications but you would not write a game in it... Several international banking applications still have an RPGII core..