The reason, IMO, that these excellent tools didn't take off is that they weren't cross-platform. ( forgot if ProGraph was). In the case of HyperCard, it was ap

The reason, IMO, that these excellent tools didn't take off is that they weren't cross-platform. ( forgot if ProGraph was). In the case of HyperCard, it was apparently a deliberate decision by SJ. I say he chose poorly. I don't recall any other really popular and easily approachable and affordable (meaning free) programming environments that were fully cross-platform. That excludes C and Perl and so forth (pun unintended) that only command-line hackers use(d). What works today? Jupyter Notebooks? (Carnets on iPad) Processing? They don't have the low level access of the aforementioned tools. AFAIK. What would you install on every machine (give or take tiny mobile devices) short of the full developer toolset? Cross-Platform, free, approachable, and some control "system()" capability. Basic doesn't count. I found only gambas to be cross-platform, with a couple of apps for iOS. ( for old times sake)