Multisim software by National Instruments combines SPICE simulation and circuit design into an environment optimized to simplify everyday design tasks, which helps you improve performance, minimize errors, and shorten the time to prototype. By adding robust circuit simulation and analyses to the design flow, Multisim helps researchers and designers reduce printed circuit board (PCB) prototype iterations and save development costs. Its intuitive interface helps educators reinforce circuit theory and improve retention of theory throughout the engineering curriculum. Overview of NI Multisim Professional Benefits It integrates industry-standard SPICE simulation with an interactive schematic environment to instantly visualize and analyze electronic circuit behavior. Free Download National Instruments Multisim Professional Power Pro Edition (x86-圆4) for Windows.