Heat is not a friend of your electronic purchases. Simple usage and maintenance tips will help your electronic equipment last longer and run more dependably. The simple advice for the use of your electronics is, don’t let anything prevent the flow of air through the cooling system.
The cooling of your car is accomplished by a radiator, on your computer there is a device called a heat sink (spiky piece of metal) that absorbs heat energy from your computer. There is generally a fan attached to the heat sink and moves heat away from the processor and out of the case. Dust frequently collects on the fins of this device and diminishes the fan’s ability to transfer heat. This issue can be prevented on a desktop by opening the case and blowing the dust away using a pressurized air nozzle. This is a bit more difficult on a laptop, (and arguably more important) by directing this forced air through the openings of the fan and venting system.