Transcription: The 409B widget spanning tube gasket is a classic example of standards-based compliance engineering. Originally designed as a replacement for the five cent rubber washer, a USB interface was added late in the design stage to accommodate changes in the plumbing supply industry's internet strategy and as a result of a misdirected memo. While the engineering team initially had concerns about this addition, they soon discovered that it would allow them to add a lot of cool features. As you can see, the hierarchical topology of the USB interface is represented by an arbitrary collection of charts a ...