A charge eliminating mechanism of the invention includes a mechanical switching mechanism, and a wiring line so connected as to be able to be electrically connected to the POGO pin. The imaging device includes an ultrasound transducer and bias circuitry electrically coupled to the transducer for biasing the transducer. The phase change material has different electrical properties in different states. One or more pairs of remote data storage device servers are in communication with the servers so that each pair stores the same data as its counterpart so that they mirror one another, each server having software to dynamically spread workload across the available servers based on factors including the number of files already opened, the existence of files, and available space. The movement of the portable electronic device may be measured through the use of accelerometer data.