Right, but bear in mind that the "terminal" here is a teletype - basically a printer with a keyboard, as shown in the picture.
If you wanted a cheaper keyboard + display option, there was always Don Lancaster's "TV Typewriter" kit.
If you wanted a cheaper keyboard + display option, there was always Don Lancaster's "TV Typewriter" kit.
https://www.youtube.com/watch?v=qv5b1Xowxdk
As far as any program was concerned the TTY was just a serial port, and it couldn't tell the whether data coming in was from keyboard or paper tape reader.