Computer Science

a combination of two or more logic gates used to represent a more complex logical statement

a picture used to represent a more complex logical statement

Creating logic circuits

In this unit pupils will discover that Boolean logic is a way of describing circuits inside a computer. They will recognise logic gates as the building blocks of processors. They will be able to construct logic diagrams, truth tables and simplify Boolean expressions.

Boolean logic

Which logic gate has the highest operator precedence?

Sofia created a logic circuit to show that cake AND ice cream is NOT allowed. Which logic statement correctly represents this?

Match the logical expressions to the logic gates required.

one AND gate and one OR gate, evaluate AND first

one AND gate and one OR gate, evaluate OR first

two OR gates and one AND gate, evaluate OR first

two AND gates and one OR gate, evaluate AND first

You are tasked with designing a logic circuit for the statement: "Q = A AND B or C".
Which of the following logic gates do you need, and what is the correct order of evaluation?

Identify the inputs for this sentence: “If it is raining and not windy, I take an umbrella.”

A=0 B=1. 
Give the value of this expression: Q = NOT (A AND B).

Which logic gate is represented by this symbol?

Write an expression for this sentence: “I’ll go bowling (B) if my friend (F) is coming and I have enough pocket money (M)”.

Starter Quiz