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Sketchpad: Constraint-based 2D CAD sketching prototype from 1963 (www.youtube.com)

submitted 7 months ago by [email protected] to c/[email protected]

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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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