Circuit Simulation is a computer-based method used to model and analyze electronic circuits. It allows engineers and designers to test circuit behavior without physically building them, saving time and resources. By using software tools, users can simulate how components like resistors, capacitors, and transistors interact under various conditions. These simulations help identify potential issues, optimize performance, and validate designs before production. Popular circuit simulation software includes SPICE and Multisim, which provide visual representations and detailed analysis of circuit performance. This technology is essential in fields like electronics, telecommunications, and embedded systems design.