| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic desktop calculator substitutable for the function as a cash register. SOLUTION: A plurality of function keys are arranged on a keyboard 6 provided with figure keys and operation keys. An each key data totalizing part for totalizing numeric value data in accordance with kinds of respective function keys is arranged in a RAM 13 backed up with a power source. When inputting either one key of the respective function keys, a CPU 1 determines a kind of inputted function key. Figure data inputted by the figure keys or data arithmetically processed by an operator inputted by the operation keys is added to the numeric value data stored in an each key data storage part in accordance with a kind of determined function key.
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