zeidman

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PRESIDENT

Bob Zeidman is considered a pioneer in the fields of analyzing and synthesizing software source code. He is the president and founder of Zeidman Consulting, a premier contract research and development firm in Silicon Valley that provides engineering consulting to law firms regarding intellectual property disputes, and he is the president and founder of Software Analysis and Forensic Engineering Corporation, the leading provider of software intellectual property analysis tools, having pioneered the field. His book The Software IP Detective’s Handbook is one of the main books for engineers and lawyers on software intellectual property.

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    • For decades, a rumor has persisted that DOS was illegally copied from CP/M and that the fortune accumulated by Bill Gates rightfully belonged to Gary Kildall.

    • Antedeluvian: I haven't heard about Intel's copyright, but an assembly language is different because there are many choices for instruction mnemonics. An instruction to move data could be MVE, MOV, MVI, MOVEATOB, or BLAHBLAH. But if you call it MOVE, it would be hard to argue that it was creative. Having said all that, you're right that it's subjective as to what is "creative." So DRI could have argued that the commands were creative. I just think it's unlikely that a judge or jury would have agreed. Also, I found evidence that the Intel ISIS OS used the same commands as CP/M before CP/M, but I can only find documentation on ISIS-II and not the original ISIS. Kildall was involved with ISIS at Intel before he left Intel.

    • I'll be giving a history of events in my talk and answering many of these questions. And I'll take questions from the audience afterwards. Plus, I expect that we'll have some of the early DRI people at the event to contribute their memories of what happened on that fateful day when IBM visited Monterey, California looking for an operating system.

    • Amen, Jack. It's funny how a closed office used to be a long-for reward that came with a promotion. Now people want these open spaces. Maybe many engineering tasks have become like assembly lines where people don't need to be creative. I prefer my private office with a door I can close and think in peace (and do whatever else comes naturally).