Computer Science · Oct / Nov 2020 · Paper 12 · Question 4
0478
As printed in the paper
The question as text
Consider the logic statement: X = (((A NAND B) NOR (B AND C)) OR C)
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(a)[4]
One mark for each correct logic gate with correct input:
4(b)[4]
Four marks for 8 correct outputs
Three marks for 6/7 correct outputs
Two marks for 4/5 correct outputs
One mark for 2/3 correct outputs
A
B
C
Working space
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