'''FutureOS''' does not require the native CPC-OS, except its character set. If you replace the lower ROM by the [[CPC FutureOS lower ROM]] for example, then FutureOS will start directly.
== Graphic User Interface ==
The Graphic User Interface (UIGUI) of FutureOS presents the user with three sections: the icon section (upper half of screen), the file window (lower half of screen) and the message line (bottom of screen). It appears directly after starting FutureOS, but can also be used by applications. The user can browse through directories of discs and hard-disc partitions. The size of the text window is fixed, due to this 64 different file names can be displayed at once (this equals one complete directory of a data of system formatted disc f.e.). Instead of scrolling, you browse page by page through the used directories. A mouse pointer is used to select devices, functions or files; this pointer can be controlled with nearly all of the pointer based HID devices (joystick, mouse, trackball, light-pen, grafpad etc.) available for the CPC.
Applications can call the UI and the user returns to the application using the OK icon. The icons are fixed, therefore the layout remains stable throughout its use and on every CPC using FutureOS.