braille is a fast declining tech. because, screen readers and audio are replacing it.
when you have 6 dots, each is on/off, you have 2^6 = 64 possibilities.
when you have 8 dots, you have 2^8 = 256 possibilities.
one interesting thing is how do you sort braille? here's 3 possible ways.
another combinatorial unicode char set is the trigram.
Note that, in these MONOGRAM, TRIGRAM, TETRAGRAM, HEXAGRAM, some allows the bar to break into 3 pieces, while other only 2.
@azure i see. thanks!
@azure @xahlee I've never conversed with a blind programmer/hacker, but I've met a few blind people. One old non-expert used JAWS (aural) on Windows with mostly MS Word, Outlook, Internet Explorer and Firefox. His biggest challenge of course is user-abusive web sites.
Another more advanced blind computer user I have hung out with uses Linux and probably Orca (aural). He might have used some kind of Android phone, too.
I know that braille terminals exist but I've never talked to a user.