A tool facilitates a balancing of security with usability enabling secure user access to multiple secure sites and locations from several computing devices. Images are generated that represent the volume of each search query relative to all search queries over a period of time. A notification technique is also provided to notify a user when the image or images being displayed is color corrected. The slot 14 is composed of a first aperture 15 extending in a straight line, a second aperture 16 communicating with one end of the longitudinal direction of the first aperture 15, and a third aperture 17 communicating with the other end of the longitudinal direction of the aperture 15. Certain conditions are used to determine if a switch from one type of stage processing to another type of stage processing is needed. The invention enables a seamless transition from Continuous Conduction Mode the Discontinuous Conduction Mode and Pulse Skipping and provide converters that are efficient at low current loads.