| 摘要 |
A visual display system having a restricted data display capability incorporating a main buffer store (1) having a storage capacity for data lines greater than the display line capacity of the display (2). Status information signals from a control unit 14 are associated with each line of data as it is introduced into the display so that when the display is scrolled or racked to free data display lines for new data-the status signal effectively decides whether a line of data is discarded or fed into the main buffer store (1).
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