Monday, March 5, 2007

Lab 7 Task 2

For this task the final result for the logic gate is NOT (A XOR B), for this expression I came up with the following image in the Logic Gate Simulator:



After viewing the result of this expression at different values of A and B, I came up with the following Truth Table:

A

B

A XOR B

NOT (A XOR B)

0

0

0

1

0

1

1

0

1

0

1

0

1

1

0

1


This expression is only true when both A and B are the same value, if they differ in value then the expression is false. It is the opposite of the Exclusive-OR or XOR expression, and this is the result of the NOT being placed in front of the XOR expression. So the function of this circuit is to only allow for a "True" result when the values are equivalent, if they aren't then there is a "False" result.

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