I have an IBM 2139 computer which has a single serial port identified as COM2. I can<br>detect it with recent DrawingBoard III software. However, it cannot be detected at the DOS level or in a version of QBASIC in the 2139. I am able to digitize data from a graph at work using an older computer, tablet<br>and QBASIC. I am trying to do the same thing at home using the 2139 and the new tablet.
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Identification of COM2 On IBM 2139
- Thread starter kaplana
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