Canon X-07 User Manual page 17

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Lock switch
Programs are created and data are input by typing on the keyboard. The con­
tents of a program, and the result of program execution are displayed on
LCD.
Even when the power is turned OFF, programs and data are retained as long as
the batteries remain charged. Programs and data can also be memorized on
memory cards. With several memory cards, programs and data can be ex­
changed quickly (with back-up battery).
Programs and data can also be memorized on a cassette tape by using a
cassette recorder. With optical couplers, cableless communication (no need for
bothersome cables) can be performed.
The X-07 has a built-in alarm timer (timer and calendar). Set the alarm to a
desired time, and it will sound an alarm on the desired date, day of the week,
and time, or play back a melody you have programmed.
The above features are explained in detail in their relative sections.
8
Use this switch when inserting or removing a
utility card. When this switch is set to OFF,
the power cannot be turned ON.