OrCAD is a software suite used for electronic design automation (EDA). It helps engineers and designers create and simulate electronic circuits and printed circuit boards (PCBs). The software provides tools for schematic capture, PCB layout, and analysis, making it easier to design complex electronic systems. One of the key features of OrCAD is its ability to integrate with other design tools, allowing for a seamless workflow. It supports various file formats and offers libraries of components, which helps users quickly find and implement the parts they need for their projects.