| 摘要 |
An electrical cash register is disclosed, which is provided with a numerical data memory in which sales data input from a keyboard are successively accumulated, and also in which commodity data for different items input from said keyboard are stored when a particular key on the keyboard is operated. When a data transmision key on the keyboard is operated, the sum of sales data and commodity data stored in the numerical data memory are transmitted to an external apparatus. Before commodity data is transmitted, its format requirement (digit number length) is checked and commodity data memory availability for the particular requirement is also checked. |
