javafx barcode scanner 8: Power Supplies in Software

Maker QR Code JIS X 0510 in Software 8: Power Supplies

8: Power Supplies
Denso QR Bar Code Reader In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Quick Response Code Maker In None
Using Barcode maker for Software Control to generate, create Quick Response Code image in Software applications.
Electricity works essentially the same way as water Electric companies gather or generate electricity and then push it to your house under pressure through wires Just like water, the electricity sits in the wires, waiting for you to plug something into the wall socket, at which time it ll flow at a more or less constant rate You plug a lamp into an electrical outlet and flip the switch, electricity flows, and you have light You pay for reliability, electrical pressure, and electricity used The pressure of the electrons in the wire is called voltage and is measured in units called volts (V) The amount of electrons moving past a certain point on a wire is called the current or amperage, which is measured in units called amperes (amps or A) The amount of amps and volts needed by a particular device to function is expressed as how much wattage (watts or W) that device needs The correlation between the three is very simple math: V A = W You ll learn more about wattage a little later in this chapter Wires of all sorts whether copper, tin, gold, or platinum have a slight resistance to the flow of electrons, just like water pipes have a slight amount of friction that resists the flow of water Resistance to the flow of electrons is measured in ohms ( )
QR Code Reader In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Painting QR Code ISO/IEC18004 In Visual C#.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create QR image in Visual Studio .NET applications.
Pressure = Voltage (V) Volume flowing = Amperes (A) Work = Wattage (W) Resistance = Ohms ( )
QR-Code Printer In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
Encoding QR Code In VS .NET
Using Barcode maker for VS .NET Control to generate, create Denso QR Bar Code image in Visual Studio .NET applications.
An electrical outlet must have a ground wire to be suitable for PC use!
Drawing QR In VB.NET
Using Barcode printer for Visual Studio .NET Control to generate, create QR Code 2d barcode image in .NET applications.
Drawing UPC Code In None
Using Barcode creator for Software Control to generate, create UPC Symbol image in Software applications.
A particular thickness of wire only handles so much electricity at a time If you push too much through, the wire will overheat and break, much like an overloaded water pipe will burst To make sure you use the right wire for the right job, all electrical wires have an amperage rating, such as 20 amps If you try to push 30 amps through a 20-amp wire, the wire will break and electrons will seek a way to return into the ground Not a good thing, especially if the path back to ground is through you! Circuit breakers and ground wires provide the basic protection from accidental overflow A circuit breaker is a heat-sensitive electrical switch rated at a certain amperage If you push too much amperage through the circuit breaker, the wiring inside will detect the increase in heat and automatically open, stopping the flow of electricity before the wiring overheats and breaks You reset the circuit breaker to reestablish the circuit and electricity will flow once more through the wires A ground wire provides a path of least resistance for electrons to flow back to ground in case of an accidental overflow Many years ago, your electrical supply used fuses instead of circuit breakers Fuses are small devices with a tiny filament designed to break if subjected to too much current Unfortunately, that breaking meant fuses had to be replaced every time they blew, making circuit breakers much more preferable Even though you no longer see fuses in a building s electrical circuits, many electrical devices such as a PC s power supply often still use fuses for their own internal protection Electricity comes in two flavors: direct current (DC) , in which the electrons flow in one direction around a continuous circuit, and alternating current (AC) , in which the flow of electrons alternates direction back and forth in a circuit (see Figure 82) Most electronic devices use DC power, but all
Bar Code Generation In None
Using Barcode creator for Software Control to generate, create bar code image in Software applications.
Bar Code Creator In None
Using Barcode encoder for Software Control to generate, create barcode image in Software applications.
Mike Meyers A+ Guide to Managing and Troubleshooting PCs
Code39 Maker In None
Using Barcode printer for Software Control to generate, create USS Code 39 image in Software applications.
GTIN - 13 Encoder In None
Using Barcode creation for Software Control to generate, create GTIN - 13 image in Software applications.
Figure 82
Encode Identcode In None
Using Barcode encoder for Software Control to generate, create Identcode image in Software applications.
Painting Code39 In Java
Using Barcode generator for Java Control to generate, create Code 39 Extended image in Java applications.
Diagrams showing DC and AC flow of electrons
Encoding ECC200 In Java
Using Barcode encoder for BIRT reports Control to generate, create DataMatrix image in BIRT reports applications.
Decoding Code 3/9 In Visual Studio .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET framework applications.
power companies supply AC power because AC travels long distances much more efficiently than DC
EAN / UCC - 14 Generator In Java
Using Barcode printer for Java Control to generate, create USS-128 image in Java applications.
Linear Generation In VB.NET
Using Barcode encoder for .NET Control to generate, create 1D Barcode image in Visual Studio .NET applications.
Essentials
Print Bar Code In VB.NET
Using Barcode creator for .NET Control to generate, create bar code image in VS .NET applications.
Creating ANSI/AIM Code 39 In Java
Using Barcode creator for Android Control to generate, create Code39 image in Android applications.
Powering the PC
Your PC uses DC voltage, so some conversion process must take place so that the PC can use AC power from the power company The power supply in a computer converts high-voltage AC power from the wall socket to low-voltage DC The first step in powering the PC, therefore, is to get and maintain a good supply of AC power Second, you need a power supply to convert AC to the proper voltage and amperage of DC power for the motherboard and peripherals Finally, you need to control the byproduct of electricity use, namely heat Let s look at the specifics of powering the PC
Copyright © OnBarcode.com . All rights reserved.