Emacs is used as an operating system (interface), by blind users! Emacspeak adds speech syntheses and more to Emacs, and can do better than traditional screen

Emacs is used as an operating system (interface), by blind users! Emacspeak adds speech syntheses and more to Emacs, and can do better than traditional screen readers in many ways due to being able to easily access the underlying lisp states easily. My father has difficulty seeing, and spends most of his computer time within Emacs, occasionally switching to Gnome (for certain websites) or a speech enabled console.