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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 0000:  The Start of the PC
      9  V  Electricity

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Insulators and Conductors
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Completing a Circuit

At this point it is clear to you that electricity cannot move without a complete path. When designing a circuit board, a common return path is created that is called ground.

Ground shows up prominently in all aspects of the PC and in this book.

Connection Point Ground

A connection point that is ground for a PC component is typically known as pin 1.


[spacer] Identifying Pin 1

Sometimes Identifying Pin 1 can be an elusive task. Frequently a trick that works is to look at the backside of a circuit board and looked for a solder connection that is square instead of round. If you can find that, you found pin one.


Figure 9: Notice the one connection point is square. This indicates Pin 1 or ground.

 


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Insulators and Conductors
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Magnetic Fields
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