Designing electronics hardware can be a time taking and costly affair. Electronic Circuit Simulators are computer programs that replicate the circuit behavior of Electronic Circuits on a Personal Computer. Electronic Circuit simulators not only give useful insights into the circuit behavior but also help us in minimizing the efforts in terms of time and money. In the design of any electronics circuit, it is important that the simulation of the circuit be done before a hardware implementation is done. One goes for hardware implementation only when accurate simulation results are obtained.