The present disclosure provides a computer-implemented method of performing system maintenance in a computing device. The digital media may be previously purchased by the individual or may be new, unused digital media purchased specifically as a gift for the recipient. The controller may generate a first folder having a name including text obtained from first contents displayed on the display unit, search the memory for second contents that are associated with the obtained text, and store information related to the searched second contents in the first folder. The method also includes creating a first source interconnect, first drain interconnect and first gate interconnect which are electrically connected to the transistors, on the second insulation film. The handheld device also includes an application manager for assigning an application instance identifier to an instance of an application executed by the virtual machine.