Before the Internet, if we wanted to read up-to-the-minute news or weather, we had Teletext. It is a low-bandwidth text standard that used to be sent via the hidden black border on TV signals. BBC Micro and Master computers had a Teletext character generator chip and mode, which they actually booted into by default. Therefore, Teletext was easy to implement via a small ROM and a modem. I managed to get it running, despite Teletext being killed off years ago. Here is how I did it. Teletext chara...