| 摘要 |
A limited access real-time data communication and display system wherein access to selected portions of stored data may be gained by the insertion of a coded identification card into the system resulting in the display on a cathode-ray tube of the selected data in a line raster adjacent to which and aligned with are a plurality of line selection switches which allow an operator to gain access to additional data in accordance with the displayed information and in accordance with the coded identification card.
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