The difference between pcba board and pcb board

To understand the difference between pcba and pcb board, we must first understand what is the definition of "PCBA"?

PCB refers to a blank board, which is simply a light board. As shown in the above figure, there are no components on it. But a PCBA is a complete PCB assembly with components added to a bare board, that is, it contains all the electronic components needed to make the board function as required. PCBA may also refer to the entire production process in which a circuit board is assembled with the necessary components. As shown below: