The motherboard is a large printed circuit board (PCB), flat piece of plastic or fiber- glass that contains thousand of electrical circuits etched onto the board’s surface. The circuits connect numerous plug-in receptacles, which accommodate the computer’s most important components (such as the microprocessor). The motherboard provides the centralized physical and electrical connection point for the computer’s most important components. Most of the components on the motherboard are integrated circuits. An integrated circuit (IC), also called a chip, carries an electrical current and contains millions of transistors. A transistor is an electronic switch (or gate) that controls the flow of electrical signals to the circuit.
The motherboard is one of the most important parts of a system unit. Without it, your computer is like nothing.
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