Power Supply Ratings
In previous chapters, you've learned about bits, nibbles, bytes, base 2, base 10, and base 16. Here's another measurement for you: watts. There are all types of complex calculations for watts, but they aren't important in this case. What is important to realize is that power supplies are rated in watts, and the more watts a power supply provides, the more devices it can safely power.
Typically, power supplies in tower-case (upright case) machines use 300-watt or larger power supplies, reflecting the greater number of drives and cards that can be installed in these computers. Power supplies used in smaller desktop computers have typical ratings of 145 watts or less. The power supply rating is found on the top of the power ...
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