Edit Devices, ContinuedMath co-The math co-processor assists the CPU chip in performing mathematicalprocessorfunctions. In most computers, this is a feature that is automatically built intothe motherboard circuitry.Expansion slotsOn the motherboard, there are extra connections for enlarging the capabilitiesof the computer. Features such as extra memory chips, called single inlinememory modules (SIMMS), a video graphic array (VGA), and networkinterface cards (NICs), plug into these expansion ports to expand computerversatility. When you upgrade software or make additional softwarepurchases, you may have to enlarge the memory capacity of the computer.ClockOn the motherboard inside each computer, there is a clock. The clockcoordinates and paces the functions of the computer.Figure 3-6 shows the motherboard and the basic circuitry found on it.Figure 3-6. —The motherboard.Continued on next page3-14
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