A writing instrument comprising a smooth elongate case has a recessed switch for extending and retracting the tip of an ink cartridge. The disclosed system captures file system states and workloads of a live server at the live network. The system may further be connected to a computer or computer network allowing information distribution between the medication monitor and third parties, such as physicians or pharmacists. In addition, different covering structures can be used. The light source may comprise an array of controllable light-emitters. It obtains a combined expected power consumption pattern by adding power consumption patterns of the operating power consumption systems.