A system for scanning paper media is disclosed and may include at least one microprocessor. Accordingly, the number of necessary amplifiers and comparators is reduced and a separate reference voltage generator is not needed, so that chip size reduction and low-power operation is accomplished. The cage includes a frame body provided with a seat for supporting the electric appliance, and a connector unit connected to the hoisting winch. A lid is also provided with the container so that a fluid may be provided and stored as part of an all-inclusive delivery system. An activity of the target entity in the communication network is tracked using the merged identity cluster.