An interference-signal removing apparatus is provided for removing narrow-band interference signals from input signals including wide-band desired signals and the narrow-band interference signals, which suppresses that even desired signals are removed. The computer-implemented method may also include identifying a backup system operating for the host system, the backup system having multiple IO paths to the active-passive storage array. During a video game session an advertisement is provided to the gamer. Furthermore, the brackets comprise a recess for receiving a portion of a fuel line. The at least one additional comprises a second opening faces a circuit board on which a high-power electronic component is mounted. In addition, use of a particular advertisement application may be tracked to provide incentives to developers to create advertisement applications.