Great article (that appeared on HN somewhat recently) from Ken Shirrif on the history display terminals, and a great photo of the IBM 2848 Display Controller.

Great article (that appeared on HN somewhat recently) from Ken Shirrif on the history display terminals, and a great photo of the IBM 2848 Display Controller. http://www.righto.com/2019/11/ibm-sonic-delay-lines-and-history-of.html http://www.righto.com/2019/11/ibm-sonic-delay-lines-and-hist... The next-gen was far more common.. The IBM 3270 terminal hooked to a local controller that talked to the mainframe. Could also hook a printer to the controller, you could print screen and simple forms independently from the mainframe. You know all this, but I've always thought it was cool, and try to refresh my understanding of the setup. I no doubt have many details wrong.