I am sad that serial ports are disappearing from PCs, but I am glad that parallel ports are gone. They were such a horrifying GPIO interface, and yet their pre

I am sad that serial ports are disappearing from PCs, but I am glad that parallel ports are gone. They were such a horrifying GPIO interface, and yet their presence meant that every open project used them by default, and if they didn't then they used high priced tools instead. Now that parallel ports are dead, we have an abundance of affordable USB GPIO devices to choose from, from Arduinos to FTDI devices (and many others of course). And best of all, numerous devices can be connected at once via a cheap USB hub, unlike parallel port devices.