Patrick Grote @pgrote - Twitter Profile

How Did IBM PC Clones Not Get Stopped By Law Suits? Some did but Compaq had a plan… In 1982, IBM owned the PC. Its BIOS was the locked front door: published in the manuals so developers could work with it, copyrighted so nobody could copy it. Apple had already dragged Franklin Computer into court for cloning an OS. Copy IBM’s code and you weren’t a competitor—you were a defendant. Compaq wanted a portable that ran every IBM program as if it were IBM hardware. That meant an identical BIOS. Copying it was suicide. So they invented a legal heist the industry still uses: the clean room. They split the engineers in two and built a firewall between them. Team Dirty got the IBM source. They tore it apart, mapped every input, output, and quirk, and wrote a specification so precise it described what the BIOS did—without a single stolen line. Then they were sealed off. Team Clean signed affidavits swearing they had never seen IBM’s code. Working only from the spec, they wrote a brand-new BIOS from a blank page. Any resemblance to IBM’s original was function, not theft. Lawyers hovered over every draft. The project cost a million dollars. In 1983 the Compaq Portable shipped: the first legal, 100% IBM-compatible clone. The monopoly cracked. Hardware became a commodity. The software layer—Microsoft’s—became the real throne. The open x86 PC was born because one company treated copyright like a locked vault and built a second machine that never touched the original keys. The same is taking place in AI, it is just too many can’t see it yet.

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