I’m frequently wowed by progress in CAD software to become both more powerful and more easy to use. Still its good so see how great ideas took quite a lot of time to show up in programs that we use.
I was amazed when I first saw this video, especially the fact that it’s still pretty high tech for CAD and that this was all developed on a system with less than 64k memory. They didn’t have microcontrollers or computer screens yet, they used an transistors and oscilloscope…
Below is a more extensive coverage of Sketchpad, at 4 minutes the exiting part starts:
This video continues here, even showing 3D CAD: