Under no conditions is Targus liable for loss of, or damage to a computer; nor loss of, or damage to, programs, records, or data; nor any consequential or incidental damages, even if Targus has been informed of their possibility. This warranty does not affect your statutory. rights.
However, to say that power is the ability to produce intended and foreseen effects, and that no one form of power is more basic than any other, does not mean it is a simple matter to study the power of a group or social class. It is necessary to develop what are called indicators of power.
Electric power is the rate at which an electrical circuit transfers  electric energy. The SI unit of power is the watt which is one  joule per second. Wattage, Watts, and (W) are what power is measured in there just different ways to say watts. Watts is the term used to define a quantity of power. If you were  looking for a device used to measure power, that is called a  wattmeter.