FutureOS is an operating system for the Amstrad CPC6128, 6128plus, C-One and T-Rex1 developed by TFM of FutureSoft in Z80 assembler. Its development continues from 1989 up to now. FutureOS can deal with up to 4 MB long files in one piece. It has a memory management system, which divides RAM into 16 KB blocks. Further it supports a variety of hardware expansions. FutureOS is delivered together with basic utilities in the same ROMs.

Requirements

The core of the OS needs 64 KB ROM. Compatible products are EPROM-cards, the ROM-RAM-BOX, SYMBiFACE II, RAMcard, Jareks Flash-ROM or similar products. If you don't own such a card, you can take a look at FutureOS by using a compatible CPC Emulator (WinCPC, Caprice, WinApe, CPCEmu).
The core of the OS itself is executed directly in (Pseudo-)ROM or EPROM where it is divided in four 16 KB blocks. It jumps between the ROMs with the help of a little common area. FutureOS uses 2 KB (&B800...&BFFF) of the first 64 KB, all other RAM can be used for applications. Additional RAM can be occupied for DIRectory buffering. Furthermore the OS uses memory management, file-handling and Low/Mid/High-level routines to access the hardware. From AmsDOS/Basic you can start FutureOS with the RSX commands |OS or |FDESK. If you use |FDESK you can leave FutureOS and get back to BASIC where you have stopped before - the first 48 KB (not the screen) have been preserved.
FutureOS only runs well on a CPC6128 or 6128plus (not CPC464 or 664), because they support the RAM configuration &C3 (which is essential for the mouse arrow of the GUI).