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Silicon,
a semiconductor -- sometimes it
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conducts
and sometimes it doesn’t
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• |
It’s possible to control when semiconductors
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do and don’t conduct
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Ex.: Use control to test Mars AND rover
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Make
semiconductor conduct
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if “Mars” is
found
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Make semiconductor conduct
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if
“rover” is found
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Send “yes”
signal on wire
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Detect
presence/absence of “yes”
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