# Logic Gate

Discussion in 'General Electronics Chat' started by silver01, Apr 19, 2012.

Apr 19, 2012
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2. ### panic mode Senior Member

Oct 10, 2011
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just follow the gates and write output states from left to right...

3. ### silver01 Thread Starter New Member

Apr 19, 2012
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As i said earlier, ive got no knowledge whatsoever on logic gates. I was just sent the attachment via email and wondered what it was all about. Ive been reading up on how to convert to binary or decimal but still unsure how to do that....

4. ### chrisw1990 Active Member

Oct 22, 2011
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have you even tried?
look.. google is your friend.. and in this case, wikipedia turns up trumps..
http://en.wikipedia.org/wiki/Logic_gate

5. ### panic mode Senior Member

Oct 10, 2011
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i felt free to simply label all outputs (see below). can you look at the circuit and tell what can possibly affect output "a"?

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6. ### silver01 Thread Starter New Member

Apr 19, 2012
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Input 1 / Input 0 = 1

Now to try and work out the rest...!

7. ### panic mode Senior Member

Oct 10, 2011
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correct, the only thing that can affect the output "a" is the output of the OR gate, and we have
1 OR 0 = 1.

apply the same strategy to rest of the circuit. basically what you need to know is logic table for each gate.