Comment Re:Not all the EU does is bad... (Score 2) 132
I know I'm showing my age, but I remember cellphones and laptop chargers before then. You had barrel connectors, 30 pin connectors, card edge connectors, pogopin connectors, and everything in between. Even if the connector is physically compatible, the pins likely would have different polarities or voltages.
Different voltages and same form factor too, plug the wrong thing and one would've fried the device