When reviewing options for cooling requirements, it is important to consider the heat transfer methods of the device. Heat transfer occurs through conduction, convection, and radiation. Conduction is when heat moves from one object to another by direct contact, convection involves the movement of fluids such as air or liquid to transport heat and finally, radiation is when energy is transferred through electromagnetic waves. Generally speaking, any device with a processor needs adequate cooling requirements to avoid damage due to excessive temperatures. Therefore, considering the type of device in question and its components will be essential for determining what cooling requirements are necessary.