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Here's What A Computer's Serial Port Was For (And Where It's Still Necessary)

If you've been using computers for more than a couple of decades, you've probably used a serial port to attach peripherals like your mouse and modem. Until the USB standard rendered them obsolete in ...

5 old-school ports that USB replaced for good

Before USB standardized how we connect devices, computers were a tangle of incompatible ports. Here are the ones that USB ...
Computerworld

Hacking the Cable Modem: Building A Console Cable

The device shown in Figure 17-1 is an RS-232–to–TTL converter board, designed to allow a PC with a serial (RS-232) port to communicate with a device that has a console (TTL) port. External converters ...
SlashGear

What Did Computers Use Before The USB Port Was Invented?

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 ...