Hacking before computers

Before integrated circuits, digital circuits have been made with discrete transistors and I "invented" a flip-flop, not knowing that he is already exist. The first project with the Z80 (which I am still keeping and can show it), when I did not have a computer so I assembled a program manually on paper and machine-generated code "out of my head." The first computer animation of the late 70s, which can also be shown, based on a DIY graphical workstation. Working out ideas for a computer "galaxy" and how she went on Building preparation (adding some thoughts on social and political moment in which everything happened). Later disappointment regarding this project and revitalization through various simulators and hardware remake projects through the unknown people. What I'm doing today and why I still enjoy using assembler.