Computer Architecture - Hardware - Lesson 3 - Electricity - Eric Vanderburg
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This document discusses some core concepts of electricity relevant to computer architecture. It defines basic units like volts, amps, and ohms. It also describes common electrical components like rectifiers, transformers, diodes, transistors, capacitors, and resistors. Additionally, it covers electrostatic discharge (ESD) and how small voltage differences can damage computer components even though imperceptible to humans. Proper handling of components is needed to avoid reliability issues from ESD.
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Computer Architecture - Hardware - Lesson 3 - Electricity - Eric Vanderburg
- 1. Computer Architecture Core Hardware Chapter 3 Electricity Eric Vanderburg
- 2. Properties • Volt • Amp • Ohm • Watt • AC (Alternating Current) • DC (Direct Current)
- 3. • Rectifier – changes AC to DC • Transformer – changes the ratio of current to voltage • Higher voltage with less current can travel a longer distance. • Computers use 3.3, 5, & 12 volts
- 4. • Diode – A single direction semiconductor • Transistor – an electronic gate that can be on or off (contains 2 diodes) • Capacitor – smoothes the flow of electricity on a circuit • Resistor – device that limits the amount of current
- 5. ESD (Electro Static Discharge) • Difference in voltage between objects. • Voltages are equalized resulting in a flow of electric current • the shock from ESD might wound a component. The component might seem to work initially, but later it will be unreliable • The amount needed to hurt or destroy components cannot even be sensed by humans
- 6. ESD (Electro Static Discharge) • Difference in voltage between objects. • Voltages are equalized resulting in a flow of electric current • the shock from ESD might wound a component. The component might seem to work initially, but later it will be unreliable • The amount needed to hurt or destroy components cannot even be sensed by humans