Logic Gates Revision Answers

(a)

P NOT
1 mark
AND

OR X
T 1 mark
1 mark NOT
1 mark
AND

W NOT 1 mark

Note: accept answers using MIL symbols e.g. AND


[5]


(b)
P T W X


0 0 0 1
1 mark
0 0 1 0

0 1 0 1
1 mark
0 1 1 1

1 0 0 1
1 mark
1 0 1 0

1 1 0 0
1 mark
1 1 1 0

(NOTE: 1 mark per pair of rows) [4]




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