Sketchpad: Constraint-based 2D CAD sketching prototype from 1963
cross-posted from: lemmy.world/post/13859444
Great tech demonstration here, just a few steps below the Doug Engelbart demo in how futuristic it must have seemed, IMHO. Loved the light pen and macro-pad interface.
Also, your speakers are fine. The audio for me played mono and right channel only.
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