Computer Science · May / June 2024 · Paper 22 · Question 8
2210
As printed in the paper
The question as text
A logic circuit is to be built to control the opening of a safe used to store money. There are two keys, A and B, and a time switch C. The safe can only open if both keys are used and the time switch is off. key A not used 0 used 1 key B not used 0 used 1 time switch C switch off 0 switch on 1 safe X safe cannot open 0 safe can open 1
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
8(a)[3]
8(b)[4]
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