| 摘要 |
<p>PURPOSE:To execute the processing of multi-task or multi-user without requiring complex constitution by providing video RAMs for respective colors R, G, B with monochromatic display interfaces, respectively. CONSTITUTION:The contents of the video RAMs 10 for respective colors R, G, B are synthesized by a color display interface 13 through shift registers 12 and displayed on a color display device 14. On the other hand, respective color display data from the shift registers 12 are displayed on respective monochromatic display devices 17 through the monochromatic display interfaces 19 corresponding to respective colors. The connection of the device 14 or the devices 17 is informed to a CPU 1 through an input port 18. When the devices 17 are connected and the RAMs 10 for respective colors are independently used, the multi-task or multi-user processing can be also executed by the simple constitution additionally connecting several hardwares.</p> |
