In the golden age of DOS you had an array of bytes representing characters and an array representing attributes (background and foreground colors) and the hardware drew out of that. If you wanted to write a ‘A’ to a certain spot you wrote 0x41 to a certain memory address and that was that —- there were some wait states involved but it was way faster than drawing on a 9600 baud terminal with ANSI terminal commands that use up even more bytes.
I first used emacs on terminals that were hooked to Sun workstations and you were either going to use a serial terminal which was very slow, or the terminal emulator on the Sun which was a GUI program that had to do a lot of work to draw the characters into the bitmap. So that’s your reason TUIs went away.
I first used emacs on terminals that were hooked to Sun workstations and you were either going to use a serial terminal which was very slow, or the terminal emulator on the Sun which was a GUI program that had to do a lot of work to draw the characters into the bitmap. So that’s your reason TUIs went away.