This application has some short notes about electronic circuits and some simulations, of how it works. When you use this app with a textbook then its much easy to understand how the electronic circuit works. This application contains logic gates description and simulation of how its works. Just try it.Details:-OR Gate, AND Gate, NOT Gate, NAND Gate, Nor Gate, Universal Gate, Ex-Or Gate, Ex-Nor Gate, Seven-Segment Display, Half adder, Full-Adder, Half-Subtractor, Full-Subtractor.