| 摘要 |
PURPOSE:To simplify a correcting operation of an erroneous input by providing independently an input picture area for holding a transaction input data in a display device, and an output picture area for holing a display output display data, in case of a conversational transaction processing. CONSTITUTION:When a display output display data 11 provided with discriminating information 10 of formation/conversation is received, the display data 11 is written in an output picture area 7, and thereafter, a changeover switch 8 is switched to a Po side. In case of this state, a transaction original input data is stored in an input picture area 6. In this state, in case a reply from a host processor is provided with the discriminating information 10 of no reply/no conversation, when a confirmation key is depressed, the transaction original data is not erased but redisplayed, and reutilized for the partial correction. In this way, a correcting operation of an erroneous input can be executed easily. |
