There is no doubt that by far the most convenient and elegant method of displaying data from a microprocessor is on a Visual Display Unit (VDU). When used in conjunction with an ASCII keyboard (such as that .described in last month`s issue of Elektor) the video interface circuit described here forms a complete video data terminal which can be used with the Elektor SC/MP system or any microprocessor system possessing a serial input/output facility.
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