Microsoft and IBM

IBM built the personal computer that defined an era. Microsoft owned it. In 1980, IBM needed an operating system fast, talks with the dominant OS maker collapsed, and it turned to a small company selling programming languages. Bill Gates didn't have an OS either, but he knew where to buy one cheaply, and he insisted on one contract detail IBM waved through, apparently assuming it would always be the only PC maker that mattered. It wasn't. Clone makers flooded the market, and every single one of them needed the same software layer.

For founders and operators, this is a study in the difference between shipping a great product and owning a standard. It sharpens the question of what the platform layer is in your own market, the thing other players quietly depend on, and whether you're treating your most-used integration or API like a feature or like something far more valuable than the box it runs on.