A printed circuit board (PCB) is a fundamental component of any hardware-based product. It provides the physical foundation and electrical connections for the components that will form the electronic circuit. Optimizing a PCB design for manufacturing and assembly requires careful consideration of many factors. This video provides an introduction to PCBs and describes how they are populated with electronic components to form a printed circuit board assembly (PCBA). It also describes some practical considerations for optimizing your PCB design for production.