Computer Science · May / June 2026 · Paper 22 · Question 8
0478
As printed in the paper
The question as text
Consider the logic expression: Z = NOT (B OR NOT C) XOR (A NAND C)
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
8(a)[5]
One mark for each correct gate, with the correct inputs as shown.
A
B
Z C
8(b)[4]
Four marks for eight correct outputs
Three marks for six or seven correct outputs
Two marks for four or five correct outputs
One mark for two or three correct outputs
A
B
C
Z
0
0
0
1
0
0
1
0
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
0
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.