In SPARtan mode the GUI only displays icons which can be used directly. Unused icons will be hidden. In this mode the GUI is more easy to use and you see a bigger part of the wallpaper (if loaded).
=== Desktop functions ===
Files can be viewed on-screen (scroll up and down) or printed. When typing a text file it is possible to set the number of columns and lines of the window the text is displayed in.
File headers can also be viewed. FutureOS uses expanded but compatible file-headers, that allow a file to be up to 16 MB in length. The file-header can additionally specify the target RAM of a file. Further it can contain a file icon or a short file description.
One or more files can be LOADed, SAVEd, RENamed, ERAsed, COPYd or PRINTed on printer.
Previously used files can be retagged for a second usage, or all files can be untagged.
The I(nformation) icon provides any kind of help (if a help system is installed).
Further there is the [[FutureOS Monitor]], which provides access to RAM, ROM, Z80 registes, I/O ports and allows the testing of routines.