Letter D is all about Dial-up Modem. I surely don't miss that irritating dial-up sound when connecting to the internet. It was too annoying, really. The old school internet connection was just slow, too. You'd probably grow a lot of white hair waiting for it to connect.
It's funny when I recall my very first internet connection back home in the Philippines. That ringing screech sound blasted through the speakers. I left the computer table trying to avoid a headache. I got out my pen and paper, wrote a letter, finished the letter, yet the dial-up was still disconnected.
I hope none of you are still using the Dial-up Modem. If you do, just know I don't envy you. *grins*