Comment by bluGill
4 days ago
Machines have been writing with pens for longer than I've been alive - since 1958 according to https://en.wikipedia.org/wiki/Plotter#History.
For that matters, pens are a type of machine. if you use a pen you are a machine operator.
A pen is a tool not a machine, or does your pen have a motor?
What is the difference between tool and machine?
Whether there is a drive unit.
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