This reminds me of Mel: Mel's job was to re-write the blackjack program for the RPC-4000. (Port? What does that mean?) The new computer had a

This reminds me of Mel: Mel's job was to re-write the blackjack program for the RPC-4000. (Port? What does that mean?) The new computer had a one-plus-one addressing scheme, in which each machine instruction, in addition to the operation code and the address of the needed operand, had a second address that indicated where, on the revolving drum, the next instruction was located. https://users.cs.utah.edu/~elb/folklore/mel.html https://users.cs.utah.edu/~elb/folklore/mel.html