AND 4-Input Interactive Logic Demo

This interactive demo shows a 4-input AND gate driven by Digital Constants A, B, C, and D. Click any constant while the simulation is running to switch that input between logic 0 and logic 1.

Digital probes A, B, C, D, and Y are placed directly on the input wires and the output wire. Each probe uses a distinct chart color so the 5 logic lanes are easy to distinguish during interaction.

Y goes high only when A, B, C, and D are high. Try input combinations from 0000 through 1111, and compare the Y lane against the input lanes as you change the constants.