Brief was pretty fast too. I only used it briefly (heh), but read in some computer magazines at the time, that it used a lot of code optimizations, one of which

Brief was pretty fast too. I only used it briefly (heh), but read in some computer magazines at the time, that it used a lot of code optimizations, one of which was that it used assembly language code, and another being (IIRC) that it used BIOS calls to dynamically change the speed of movement of the cursor when it detected that you pressed an arrow key for a longer time (probably by changing the key repeat rate or reducing the repeat time), so that when you did that, movement through the file would be faster. The idea being that a user pressing the arrow key for a longer time probably meant to move through a longer section of the file (than usual) to reach some other distant place in it, so Brief figures this out and assists them with that, by scrolling faster with that BIOS technique. Anecdote: On a trip to the US (Boston), I once met Norm Miles, who, my US colleague said, was the creator of Brief. The Brief editor is actually still available, here, and for free now: http://www.briefeditor.com/ http://www.briefeditor.com/ https://en.wikipedia.org/wiki/Brief_(text_editor) https://en.wikipedia.org/wiki/Brief_(text_editor)