Place AND, OR and NOT gates on the canvas, connect them with wires, then see the full truth table generated automatically. Covers OCR J277 section 2.4.1.
Add gate
Mode
How to use
1. Click a gate button to add it. 2. In Connect mode, click an output port (right side of gate), then click an input port (left side) to wire them. 3. The truth table updates automatically. 4. Use Delete mode to remove gates or wires by clicking them.
Truth Table
Updates live as you build the circuit. Inputs are labelled A, B, C in the order they appear on the canvas.
Add gates and connect them to see the truth table.
Practice: Complete the Truth Table
A random logic expression is shown. Fill in every output cell, then click Check.