This application have some short notes about electronic circuits and some simulation, how it works. When you use this app with a textbook then it's much easy to understand how the electronic circuit works. This application content logic gates description and simulation of how its work. How you can put logic gate together to build a project. Just try it. Details Or Gate, And Gate, Not Gate, NAND Gate, Nor Gate, Ex-Or Gate, Ex-Nor Gate, Half adder, Full-Adder, Parallel Binary Adder, Half-Subtractor, Full-Subtractor, Parallel Binary Subtractor, Multiplexer, De-multiplexer, Seven-Segment Display, BCD to Seven-Segment Display Decoder, Clock Pulse, Flip-Flops, Set-Reset(Latch), S-R Flip-Flop, D Flip-Flop, J-K Flip-Flop, T Flip-Flop, Master-Slave J-K Flip-Flop, Asynchronous Counter, Synchronous Counter, Ring Counter, Johnson Counter, Shift Registers, Universal Shift-Resistor etc.