USB is one of the greatest inventions in computing. If you are a younger computer user, you may not remember a time before USB devices. It was rather terrible. Sure, there were external devices, but they connected to the very slow serial or parallel ports. I had a parallel port Zip drive, for instance. Ugh. Most things were in card form, however, and Windows wouldn't make installations an easy affair. Remember IRQ conflicts? No? Consider yourself lucky. I still have nightmares. Over the years, USB has improved dramatically, with the latest connection, Type-C, solving the biggest issue -- a reversible…
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