cmi day2 - Electricity in our Computers Electrical Flow...

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Electricity in our Computers Electrical Flow Dynamic Electricity Controlled Electricity Flows along wires Static Electricity Can Damage Electrical components Can be removed by grounding yourself Electrical Precautions Touching a large piece of metal like the computer case will ground the user and remove the static charge Conductors Allow current to flow readily Minimal resistance Metals Nonconductors Insulators Offer resistance Organic Materials Air, ceramics, wood, glass and rubber are best Semiconductors A material that offers less conductivity than metal, but more conductivity than insulators
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Analog Signal A signal that has a continuous nature it can represent a infinite amount of information Digital Signal A signal that has a discrete nature it uses an off and on state to represent a finite amount of information Circuits QuickTime F and a TIFF (Uncompressed) decompressor are needed to see this picture.
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Data or Electrical flow There are two ways we send electrical or data flow in our computers Serial – each data word flows down a single conductor one bit at a time Parallel – each data word is spread across multiple conductors
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cmi day2 - Electricity in our Computers Electrical Flow...

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