Prior to USB we had serial and parallel devices
You’d wire up the devices, manually install drivers, and had to configure settings like IRQ and Serial Port IDs manually.
USB doing all of those things automatically and providing power has a huge leap forward.
The fact that the connector wasn’t reversible wasn’t even a consideration, it was already so much better than what we had that no one cared.
It wasn’t until the invention of cellphones and USB became so common place for charging that people started to care about that.
If they had thought about it in the 90s they probably would have made it reversible back then.
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