The number of combinations of 2 from 10 choices is 45
As I see it, there is ONE switch set to the second position. i.e. Binary 1. This switch simply happens to be number two in a row of ten.
Cape, are these switches physically independent of each other? I had imagined a DIP switch - (dual In-line Pin molding with ten little red slider switches.)
Edit to say: Having said this, ten switches (twenty pins into the circuit board) would be bigger than I've ever seen in an early PC.)
Right, off you go. 0000000001 - test. 0000000010 - test . . . phew, only another 1022 to go.
My tongue in cheek comment does of course assume any combinations of up and down settings. Obviously only one switch would be a doddle by comparison.
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