The first computer my family owned was an 80286 IBM clone, and it had lots of ports, none of which looked the same. There was a big 5-pin DIN for the keyboard, a serial port, a parallel port, a game ...
The USB port is something most of us take for granted. You plug in a phone, keyboard, or one of the many useful USB gadgets out there, and it just works. But not too long ago, this was basically ...
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