What does PCB mean? Or what?

The full name of pcb is "printed circuit board", which means printed circuit board. It is an important electronic component and the support of electronic components. It is mainly made of electronic printing.

Printed circuit boards have occupied an absolute control position in the electronic industry. After electronic equipment adopts printed boards, due to the consistency of similar printed boards, manual wiring errors are avoided, and electronic components can be automatically inserted or installed, welded and tested, thus ensuring the quality of electronic equipment, improving labor productivity, reducing costs and facilitating maintenance.