Preset information that is preset for preset-recording that is an automatic recording mode for recording a broadcast program in accordance with the preset information is stored in a storage unit. The APIs provide a mechanism for a computer application to interface with various components and modules of an operating system for a resource-limited environment. A rocket engine can be monitored with this system. The switches are coupled to the outputs of the plurality of LNAs. When at least some of the sensed finger data matches copies of fingerprints in the stored fingerprint data, the system determines a quantity of matching fingerprints.