> Hardly intuitive, is it.
> In what parlance/language does "1" stand for "on?" Binary? On an A/C
> line power switch?
> And, if it  was meant to be a zero, it should have had the slant bar
> thru it, like '0', to avoid just this sort of ambiguity.
> Hmmm. The electrical symbol for current is 'I'...
> Anyhow, it is a curiosity!
> 
> Most ordinary humans do not think in terms of binary symbols when it
> comes to ordinary, everyday items like hardware power switches. My
> wall switches, even the toggle or rocker ones, do not have 1 and 0, or
> even I and O on them.


I prefer the following symbols for "on" and "off":

"On" for on

"Off" for off

These make sense to me and I seldom find myself confused....

--Mike

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