Logic Gates (AQA A-Level Computer Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
In logic gate circuits, what does a high voltage represent?
In logic gate circuits, what does a high voltage represent?
Binary 1 (true)
When does an AND gate produce a true output (1)?
When does an AND gate produce a true output (1)?
Only when both inputs are true
Which Boolean operator represents an OR gate?
Which Boolean operator represents an OR gate?
What is unique about the NOT gate compared to other logic gates?
What is unique about the NOT gate compared to other logic gates?
It has only one input
When does a NAND gate produce a true output (1)?
When does a NAND gate produce a true output (1)?
When any of the inputs are false
When does an XOR gate produce a true output?
When does an XOR gate produce a true output?
When the inputs are different
Which gates does a half adder use to calculate sum and carry?
Which gates does a half adder use to calculate sum and carry?
XOR for sum, AND for carry
How many inputs does a full adder have?
How many inputs does a full adder have?
Three (A, B, Cin)
When does an edge-triggered D-type flip-flop change its stored value?
When does an edge-triggered D-type flip-flop change its stored value?
Only on a clock edge
What is the rising edge of a clock signal?
What is the rising edge of a clock signal?
Transition from low (0) to high (1)