GUIdebook: Graphical User Interface galleryThere were several computers having a complete GUI in their Read-Only Memory, ready to be used instantly after powering on. The list includes 1990’s Macintosh Classic (with built-in System 6.0.3), Atari ST (excluding very early editions of 520ST with TOS on a floppy disk) and Acorn machines with RISC OS. This GUI for post-Archimedes Acorn machines featured an updated NewLook interface, but most of
