Tuesday, March 27, 2007

Lab 8 Post



I found this lab to be pretty easy. I have been working with Excel since high school, and also took a Business class that used Excel last sememster. Overall, the lab was a review for me, but it's always good to review things and keep them fresh in your mind.

Thursday, March 8, 2007

Lab 7 Task 3




With this circuit the outputs are the same, proving DeMorgan's Law is a tautology rather than a contradiction.

A - B - Output A - B - Output
0 - 0 - 1 0 - 0 - 1
1 - 0 - 1 1 - 0 - 1
0 - 1 - 1 0 - 1 - 1
1 - 1 - 0 1 - 1 - 0

Lab 7 Task 2




With this circuit the output is only true with the not circuit when A and B are either both false or both true. Without the not circuit, the output is true when only one A or B is true and the other is false.

A - B - Output A - B - Output
0 - 0 - 1 0 - 0 - 0
1 - 0 - 0 1 - 0 - 1
0 - 1 - 0 0 - 1 - 1
1 - 1 - 1 1 - 1 - 0