Notebook Cooler Comparison

notebook cooler
A laptop/notebook cooler, cooler pad or chill mat is an accessory for laptop computers that helps reduce their operating temperature.

comparison
The quality of being similar or equivalent
relation based on similarities and differences
qualities that are comparable; "no comparison between the two books"; "beyond compare"
The act or instance of comparing
the act of examining resemblances; "they made a comparison of noise levels"; "the fractions selected for comparison must require pupils to consider both numerator and denominator"
An analogy