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NOR

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If I remember correctly (been years since electronics) a NOR gate will allow only 1,1 and 0,0 since will will NOT allow a 1,0 or 0,1. Is that correct?
 
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Come to think of it a NOR gate is only considered "open" when both inputs are zero as the other three combinations are a 1.
 
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well an OR says that with input one OR input two OR both are high then it is also high. a NOT OR therfore means the logic gate is only high when none of the inputs are high because it is the complete opposite.

truth table:
A BQ
0 0 1
1 0 0
0 1 0
1 1 0

edit* just read your last post William, yes you are right :) what you were thinking of first time was an EXNOR gate, or an Exclusive NOT OR gate. a normal OR is high when both inputs are high, and EXOR is only high when only one of the inputs is high.
 
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Yeah I realized that too after looking back, but thank you for clarifying for me. As I said, it has been a great many years since I had to take electronics.

BTW Dan, I hope you get on MSN soon.
 
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*off topic*

i was on it for alot of yesterday as appear offline, so you would not see me as online. however that was during the morning, i wasnt on in the evening because i went out partying and whatever. i will be in all day today so i will see you if youre on in the evening.
 
Level 18
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Operator what you did is against the rules.

It is reviving a dead thread, and your post was completely in another language.
It is wrong and you should be negative repped accordingly.
And seeing as how you are a mod, you should have a harsher punishment for breaking the rules you are supposed to enforce.

The thread should be closed.
 
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