Today we will explain some word abbreviations, like what is PCB, SMT, SMD, I/O, etc. What Is PCB? PCB stands for Printed Circuit Board. It is a crucial part of electronic devices and systems, providing the platform for electronic components to be mounted and interconnected. Here are some key aspects of PCBs: Function: PCBs serve as the backbone of electronic circuits, providing electrical connections between various components such as resistors, capacitors, and integrated circuits. Structure: PCBs are made up of multiple layers of conductive tracks, pads, and non-conductive substrates. The