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Category Archives: WordStar
WordSet: Stolen Without Compensation
A kind reader from a land formerly beyond the Iron Curtain recently supplied the OS/2 Museum with a curious word processor that calls itself WordSet. The files unfortunately lost their original timestamps quite some time ago, but it is apparent … Continue reading
Posted in Editors, I18N, PC history, WordStar
29 Comments
Another Myth Busted
More than once I came across a story of a heroic MicroPro programmer who in an all-night session managed to port WordStar from CP/M to DOS by patching a single byte. This is how the legend was retold by Joel … Continue reading
Posted in CP/M, DOS, PC history, WordStar
5 Comments
The A20-Gate: It Wasn’t WordStar
Although WordStar was long suspected to be the reason (or at least one of the major reasons) for implementing the A20 gate hardware on the PC/AT and all the associated problems later on, it is now all but certain that … Continue reading
Posted in 286, IBM, Microsoft, PC history, WordStar
37 Comments
WordStar Again
While trying to work on my DOS 5.0 article, I looked at DOS 5.0 build 224 from June 1990, which is the oldest surviving beta of DOS 5.0. And the README contains the following intriguing text, which reminded me of … Continue reading
Posted in DOS, PC history, WordStar
74 Comments
Another witness against WordStar
Previous posts examined the question why IBM implemented the A20 hardware in the PC/AT, causing endless headaches to future PC hardware and software developers. WordStar emerged as a possible culprit, but no one would quite point the finger at it. … Continue reading
Posted in DOS, PC history, WordStar
17 Comments
WordStar needs address wraparound?
The CP/M compatible interface in DOS was initially documented, later forgotten, and then re-discovered every once in a while. In 1989, John Switzer described parts of the CALL 5 system call interface mechanism in a slightly hysterical article as a “back … Continue reading
Posted in DOS, PC architecture, WordStar
11 Comments