| 摘要 |
<p>PURPOSE:To perform an accurate operation in accordance with instructions of an operator by multiplexing data outputted from a card holder and input data received from a keyboard in the order outputs and storing these multiplexed data in a buffer memory. CONSTITUTION:A card holder 2 outputs information on the presence/absence of an ID card and identification data. A multiplexing part 4 multiplexes the input data received from a keyboard 1 and the data outputted from the holder 2 in the order of outputs and outputs these multiplexed data to a FIFO buffer memory 5. Thus the data are outputted to a control part 6 from the memory 5 in the operating order of an operator, i.e., the order of insertion of cards, input of instruction and data, and extraction a cards respectively. In such a way, an accurate operation is secured regardless of the operating speed of the operator.</p> |
