Automation System
The computer graphics system called SKETCHPAD was demonstrated at

University of Aston, Birmingham, 1960
Cranfield Institute of Technology, London, 1962
Massachusetts Institute of Technology in 1963
Imperial college of Science and Technology, London, 1973
None of these

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Automation System
Straight-line operations:

can include diagonal cuts if they aren't curved
must be parallel to one of the axes of the coordinate system
None of these
All of these
must be limited to two per workpiece

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