This is a logic gate simulation tool, it can perform all basic dgital circuit simulation.

Instruction to use
1. Just drag and drop the circuit elements in the white workspace.
2. To connect the circuit, click on the nodes and drag to next element's node.
3. LED, switches and 5v source are to be uses to analyses and operate the circuit.
4. To any circuit element, click on it to select and then click Cut icon to remove.

Note:- The author of the program is not me and the author is unknown. So, please don't ask for help or make any feature request.