Some time ago, I saw some articles on the Internet, saying that pcb boards are very common in people's lives, and they can be used in aviation, etc. I was thinking, what role can such a board play in rockets? If rockets need pcb boards, do electrical appliances like cars also need these boards? Actually, I didn't find anything like this on my car.
Yes. PCBs are used in car equipment. Right in front of the driver seat usually there are clock, Air condition control panel, FM radio, Music player Etc. This part consists of a PCB.