| タイトル | High-speed multiplexing of keyboard data inputs |
| 本文（外部サイト） | http://hdl.handle.net/2060/19810019276 |
| 著者（英） | Anderson, T. O. |
| 著者所属（英） | NASA Pasadena Office|Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1981-04-28 |
| 言語 | eng |
| 内容記述 | A high speed multiplexing system is described in which keyboard entered data is sequentially and automatically sampled by the multiplexing system for input to a computer. A sequencer is provided which sequentially and automatically controls the multiplexer to sample each keyboard input in accordance with a predetermined sampling sequence. Whenever keyboard entered data appears on input lines to the multiplexer, the system inputs the keyboard data to the computer during a brief time interval in which the multiplexer remains at the particular keyboard address or port. Thus, a high speed sampling circuit is provided whereby the only operator action required is data entry through a keyboard. Priority or interrupt systems are not required. |
| NASA分類 | COMPUTER OPERATIONS AND HARDWARE |
| レポートNO | 81N27814 |
| 権利 | No Copyright |
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