The difference between PCB and PCBA:

PCBA is the finished board; PCB is the bare board. Excellent circuit design in PCBA board can save production cost and achieve good circuit performance and heat dissipation performance. The role of PCB is to make a program that cannot run independently in a multiprogramming environment become a basic unit that can run independently, a process that can be executed concurrently with other processes; it is a process that can be executed on the CPU by the process scheduler. program code segment.

The essence of the PCBA board is a production process. The PCB empty board is loaded by SMT, or the entire process of DIP plug-in. The PCB is the only sign of the existence of the process, and the PCB process control block is the static description of the process. PCB is the support body of electronic components and the provider of circuit connection of electronic components.