| 摘要 |
PURPOSE:To perform plotting without disturbing the operation of a host computer by storing a storage means with command data from the host computer, and pressing a memory switch then a copy key. CONSTITUTION:An RAM10 is provided as the storage means for storing the command data from the host computer 3, and the memory switch 12 is changed over to decide on whether the stored command data is held even after being executed, or that new data is written without holding the stored data after execution. Further, the command data is executed individually with the copy key 13. Consequently, the host computer 3 is restrained only in the time of the command data to the storage means 10, i.e. in an extremely short time. Specially, the storage means 10 is usable as a buffer when copying is not required.
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