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Chapter 2. Starting DOS > Booting Your Computer

Booting Your Computer

In Chapter 1, “DOS and the Personal Computer,” you read a description of the steps taken when you boot up your computer. In fact, two types of booting are available. The first is known as a cold boot. This term comes from the fact that the computer's power is off and the unit is not yet warm. As you might guess, the second type of boot is the warm boot.

A cold boot occurs when you turn on the power switch to your system. Some systems also have a reset button. Pressing this button also triggers a cold boot. The difference between a cold and warm boot is simple. A cold boot begins at the absolute beginning, using the Power On Self Test (POST) to check the condition of the system's major components and RAM.


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