| 摘要 |
PROBLEM TO BE SOLVED: To make a merchandise sales data processor easily handleable while the quickness and correctness of key operation are secured. SOLUTION: A merchandise sales data processor is provided with a double operation effectiveness data storing means 13T, key attribute discriminating means 11 and 12, and effective key input control means 11 and 12. The processor is constituted in such a way that, when a key is operated, the processor can discriminate the group storing the key by referring to the storing means 13T and can input the data corresponding to the key in accordance with the attribute of the discriminated group. |
