The Insides of a Computer - What everything means
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Case and Power Supply:
In order to turn on your computer, you need a power supply to split the electrical current to the components of the computer. As parts of a computer become more powerful, they require more power from the power supply. Power supplies now range from 500watts (W) to 1000W. Having a quad core processor, 2 video cards, 2 hard drives, 2 burners and 4GB of RAM would draw over 600W of power.
My case shown here
A: Power Supply
B: CD/DVD Burners
C: Case fans
D: Power cables (4-pin molex, 4/8-pin 5V, 24-pin 12V, etc.)*
E: Motherboard tray
A case is equally as important as the other parts of the computer. You need to be able fit all of the components into a case, but cases come in all different sizes. The most important thing to remember is the size of your motherboard. An ATX motherboard will fit in mid-towers and towers. A micro-ATX will also fit in mid-towers and towers but can also fit in smaller cases as well. Another important thing to remember about ventilation. As computers generate a lot of heat, fans are needed to at the minimum, exhaust heat from the rear of the case. As shown in the picture above, the blue arrows going into the case represent cooler air from the outside moving in to make the inside cooler. As the air travels in this case, it passes over components that emit heat and this hot air is exhausted from the rear and top as shown by the pink arrows.
*If you purchase a motherboard and/or power supply, please refer to the instruction manual for further information and installation.
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