2.6 Other assistive technologies
The range of tools available to aid users with various impairments is enormous. Many tools are built into operating systems like Windows, MacOS, or Android – tools, for instance, to change the colour scheme or font used in online documents, to make the mouse pointer more visible, or to enable ‘sticky keys’ (a function that enables users to simulate simultaneous key presses by pressing keys one after the other, if they are unable to press more than one key at once).