1.5. Identifying Purposes and Characteristics of Cooling Systems
It's a basic concept of physics: electronic components turn electricity into work and heat. The heat must be dissipated or the excess heat will shorten the life of the components. In some cases (like the CPU), the component will produce so much heat that it can destroy itself in a matter of seconds if there is not some way to remove this extra heat.
Most PCs use air-cooling methods to cool their internal components. With air cooling, the movement of air removes the heat from the component. Sometimes, large blocks of metal called heat sinks are attached to a heat-producing component in order to dissipate the heat more rapidly.
When you turn on a computer, you will often ...