HP-67 Programmable Calculator
After the calculator I tried out my programming skills on a Heath kit H8, then a PDP-8 & PDP-11. There were a few things like In-Circuit Emulators (ICE) and then an AT&T PC 6300 (Olivetti) using a full blown 8086 processor running with an 8 MHz clock!!! I upgraded to the V-30 chip and used that machine for several years. Between then and now most of my programming has been in PCs.