Stands for "Printed Circuit Board." A PCB is a thin board made
of fiberglass or a similar material. Electrical wires are
"printed" onto the board, connecting the central processor to
other components on the board. Some examples of PCBs include
motherboards, RAM chips, and network interface cards.  Printed
circuit boards are sometimes abbreviated as "PC boards," which
is fitting, since the boards are commonly used in personal
computers. However, PCBs are also found in other types of
electronic devices, such as radios, televisions, and computer
monitors. Because PCBs are relatively flat, they can also be
used in thin devices such as laptops and portable music players.
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