A PCB (Printed Circuit Board) is a thin board made of fiberglass, composite epoxy, or other laminate material. Conductive pathways are etched or “printed” onto the board, connecting different components on the PCB, such as transistors, resistors, and integrated circuits. Manufactured Printed Circuit Boards are used in computers, video, controller, network interface and expansion cards. These components connect to the motherboard (the PCB that operates as the “brains” of the device). PCBs found in mobile devices do look like those found in computers, they are typically thinner and contain finer circuitry.
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