Cool but we have come a long way since then. first of all in 1991 computers with a cd drive where still very new. you needed to spend 2000+ $ on one with a cd. and with inflation 2000$ back then was a lot more than it is in modern money. you couldn't just get an older computer like the c64. it didn't have a cd drive or the ability to play sampled sound. you needed a then high end new pc or mac. maybe amiga but that system didn't get much support and was also expensive. but not as much as the pc. this program was more demanding than most video games. it was cutting edge. and it probably didn't have anywhere near as much content as modern learning apps.