Ultimate Guide of Using Your Laptop AC Adapter and Replacement Laptop AC Adapter: First,Understanding Your Laptop AC Adapter DC power or direct current is required to operate your laptop. However, the adapter that is supplied with your laptop is referred to as an AC adapter. This is because the adapter is responsible for converting the AC or alternating current provided into … [Read more...] about Ultimate Guide of Using Your Laptop AC Adapter and Replacement Laptop AC Adapter