Virtext & Virdata: Adventures In Vertical Interval Signaling (1981)

By W. S. Ciciora, Ph.D., Zenith Radio Corporation

There are many videotex tests, trials, experiments, and demonstrations in the U.S. But, to the best of our knowledge, there is only one commercial operation based on teletext technology in the U.S. This enterprise is based on practical, produceable, cost effective hardware. The results have been encouraging. Several important new features have been introduced.

Additionally, a brief discussion of the teletext activities in Chicago will be included.

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