Explore
Learn: Logic Gates
OCR GCSE J277 Computer Science specification
Ready to start this lesson?
Sign in to track your progress. 15 steps including 8 interactive questions.
Sign In to Start Learning
Students also studied
Browse allSteps in this lesson (15)
Welcome!I've designed this lesson to help you strengthen your understanding of Logic Gates. We'll explore their functions, how they work, and practise applying what you've learned. Let's get started!
What are Logic Gates?Logic gates are building blocks of digital circuits. They perform basic logical operations on one or more binary inputs to produce a single binary output. They are essential in computing as they help carry out operations like decision-making and calculations.
AND GateAn AND gate outputs 1 only when both inputs are 1. Otherwise, the output is 0. It is used for operations where all conditions need to be true.
Quick check: What is the output of an AND gate when the inputs are 1 and 0?
Start the lesson to answer this multiple choice question
OR GateAn OR gate outputs 1 if at least one input is 1. If both inputs are 0, the output is 0. This is useful for situations where any condition being true is enough.
What is the output of an OR gate when the inputs are 0 and 1?
Start the lesson to answer this multiple choice question
NOT GateA NOT gate takes a single input and inverts it. If the input is 0, the output is 1, and if the input is 1, the output is 0. This is used to reverse binary signals.
A NOT gate outputs {{blank0}} when the input is {{blank1}}.
Start the lesson to answer this fill in the blank question
Truth TablesA truth table shows all possible input combinations for a logic gate and their corresponding outputs. It helps us understand how the gate behaves with different inputs.
Match the items on the left with their correct pairs on the right
Start the lesson to answer this matching question
Review Time!Great work! You've learned about AND, OR, NOT gates, their functions, and how to use truth tables. Now let's test your understanding with a few questions.
Which of the following are true about an AND gate? (Select all that apply)
Start the lesson to answer this multi-select question
An OR gate outputs 0 only when {{blank0}} inputs are {{blank1}}.
Start the lesson to answer this fill in the blank question
What is the output of a NOT gate when the input is 1?
Start the lesson to answer this multiple choice question
Match the items on the left with their correct pairs on the right
Start the lesson to answer this matching question
Want to Learn More?
Get personalised lessons, quizzes, and instant feedback from your AI tutor.
Explore More Topics