The disclosed embodiments provide for an email and messenging system that allows a user composing a message to select an application which will appear next to the composition screen at both the sending and receiving computer. Embodiments of the devices of the invention comprise two opposing angled jaw members that are operated by a user-controlled trigger through a linkage lever as well as comprise a locking mechanism allowing locking of the jaw members. The session includes client interaction with a Web site. After forming the upper conductive lines, storage elements are formed at intersections between the lower conductive lines and the upper conductive lines by removing storage materials from exposed portions of the line stacks, such that each storage element is laterally surrounded by spaces. The drive control circuit has a configuration in which a pulse control signal is applied to a switching element in order to stabilize the output voltage of a secondary-side circuit on the basis of the control signal.