It can be shoved into a very small chip, that doesn’t cost much.It’s a much lower overhead than a Gigabit ethernet port, or wireless connection.In fact, they worked so well, that support for them is still built into new systems today, for a variety of reasons: When serial terminals were the norm, specific protocols were created to allow systems to communicate over serial lines, and these protocols worked really well. So now, instead of a big clunky green screen and keyboard, we use a piece of software that pretends to be a serial terminal by emulating it. By Jason Scott (Flickr: IMG_9976), via Wikimedia Commonsīut it’s big and heavy, and these days we have more modern computers, right?
