An operational amplifier includes an input stage for producing a a voltage signal in response to an input signal. Specifically, the techniques of this disclosure may, in some examples, allow the user to use gestures on a mobile computing device to perform text entry and editing operations. The commoning member has a plurality of tabs that are electrically connected to selected ones of the terminals, thereby electrically commoning the selected ones of the terminals. The intermediate server is adapted to receive the encoded data and has a processor adapted to decode the encoded data using the NPEC, and to transmit the decoded data to the application server. A backing plate assembly engages openings in the fluid chambers of the handle body to seal fluid therein. At the engagement position, the engagement members clamp the rotated object in a floating state with the engagement members pressed onto the rotated object by the biasing member.