The first part is fun! Brought back great memories of hacking IBM 1130's at Teledyne Ryan while in high school. He's wrong when he said that machines of that v

The first part is fun! Brought back great memories of hacking IBM 1130's at Teledyne Ryan while in high school. He's wrong when he said that machines of that vintage didn't know about stacks: the whole Burrough B5000 series of machines were entirely stack-based (and programmed in an extended Algol--decades ahead of their time).