A secured credit card works like a traditional card: You can use it to make purchases each month. If you pay off your balance in full each month, you won’t be charged interest on these purchases ...

Credit card companies make money on purchases in several different ways. These include the interest they earn if you carry a balance and the interchange fees credit card networks charge.

To make the graphics processor and, correspondingly, the entire graphics card work more efficiently and thus cooler, lower this value step by step from 100 to 80 to 60 percent.