What is the meaning of PCB in electronics

Although the printed circuit board (PCB) is the most commonly used electronic component, do you really know it? Through the videos and texts of FS Technology, you can fully understand what is PCB and its origin.

PCB Basics - SparkFun Learn

Gerber, ODB++ and Other Design Files

How to Design a PCB Layout - Circuit Basics

Introduction to Electronics for Beginners - PCB

The Basics Of PCB Design: Components & Construction

PCB Basics - SparkFun Learn

PCB Components and Their Functions, Advanced PCB Design Blog

What PDN Target Impedance Means for PCB Designers - Zuken EN

Definition of printed circuit board

Printed circuit board - Wikipedia

PCB Material: A Comprehensive Guide to Understanding and Choosing the Right Materials

Reading Schematics and PCB Boards 101: Electronic Circuit Reference Abbreviations and Symbols - Instructables

What does mean E in a PCB component designation?I have some black components with E3, E6 and E7. I know that R are for resistor, Q transistors, L coils, but E, what