('Database's' Tony Bastable demonstrates the art of emailing 1980's style when over seas. First shown on Thames TV in 07/06/1984.)
As a happy coincident, there was a post in r/CyberDeck about a reporter who used a TR-80 back in the day writing about the Tandy TR-80 Model 100 (typed on a TR-80 Model 100):
This TRS-80
A great read, however, contrary to a statement in the article, this model was definitely not the first portable computer, nor the first laptop/notebook computer. (The first one of this form factor was the Epson HX-20.)
Daniel shares with us some of the fruits of research into computer keyboard history conducted over recent years. In this case, the surprising variety of methods by which keyboards determined which keys are being pressed.