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Int 1Ah, 07h            Reset Real-Time Clock Alarm                      many

    Prevents the real-time clock alarm from occurring.

        Entry   AH = 07h

        Return  Nothing

    ------------------------------------------------------------------

    This service disables the alarm process. It does so by not
    executing an Int 4Ah at any time. See Service 06h (Set Real-Time
    Clock Alarm) to set the alarm.

    The real-time clock is the clock that runs even when the computer
    is turned off. A CMOS battery is used so that, even while the
    computer is off, the date, time, and alarm time are maintained.

    This service is available only for ATs, XT-286s, and PC
    Convertibles. Previous machines will report unpredictable results
    (including the state of the Carry Flag).