JAWS was originally created for the MS-DOS operating system. It was one of several screen readers giving blind users access to text-mode MS-DOS applications. A feature unique to JAWS at the time was its use of cascading menus, in the style of the popular Lotus 1-2-3 application. What set JAWS apart from other screen readers of the era was its use of macros that allowed users to customize the user interface and work better with various applications.[citation needed]