Methods and apparatus for determining a level of performance of a first application in a computer system are disclosed. The temperatures of an anode and a cathode of the fuel cell can be precisely changed or maintained such that the performance of the fuel cell can also be measured in sub-zero temperature conditions without requiring a separate environmental chamber. The modem interface can then be used as a standard interface to a wireless device. The record is retrieved, indicating updates superseded by the target update and updates superseding the target update. The device further includes a high-voltage transistor circuit formed on the semiconductor substrate, and including a second gate insulator having a second thickness greater than the first thickness, and a peripheral circuit formed on the semiconductor substrate, and including the second gate insulator.