| 摘要 |
PURPOSE:To prevent the occurrence of a queue and to avoid the degradation in the processing performances of respective plural sales register processing programs. CONSTITUTION:Plural sales register processing programs 2 and 3 individually perform the processings relating to sales registration 11 and 13 for plural customers 10 and 12. Plural CPUs 4 and 5 simultaneously control plural sales register processing programs 2 and 3. A picture memory 21 corresponding to a display device 16 which is controlled with the screen divided in accordance with plural sales register processing programs 2 and 3 is realized on a shared memory 22 for plural CPUs 4 and 5. |
