The '''FO-DOS Cartridge''' is a BIOS/BASIC 1.1 ROM upgrade for the CPC 464 from [[Duchet Computers]].
The cartridge reportedly only contains the Contains a 32K BIOS/BASIC ROMEPROM, two diodes, a diodeLED, and a switch (for switching between old/new ROM).
Combining the FO-DOS cartridge with an additional [[Standard Memory Expansions|Standard Memory Expansion]] expansion and an external [[DDI1Amstrad Disk Drive|DDI-1]] disc drive would almost upgrade a CPC464 to a CPC6128.
Exact ROM content is unknown. It might But the CPC464 would still not be an original able to use RAM configuratins &7FC1 or modified, 664 or 6128, english or french BIOS ROM&7FC3 f.e..? (being made in 1989 it probably has the newer french rom)
== Pictures ==Exact EPROM content is unknown. It might be an original or modified, english or french CPC6128 BIOS ROM...?
<gallery>Image:NoPicture(being made in 1989 it probably has the newer french rom).png</gallery>
== Download ==From cpcrulez forum: Boot messages says "...v3 (1985)... basic 1.1"
* ROMThe meaning of the name "FO-Image DOS" is unknown - none such dumped yetand, it's misleading: it doesn't contain a DOS, only BIOS and BASIC. Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page : http://trastero.speccy.?org/cosas/JL/JL.htm We can know more about this hardware. Another hardware like FO-DOS is: http://cpcwiki.eu/index.php/LowerROM
== Review ==
:Hey while we're in Duchet products, the new version of the Hacker arrived. Just change a little ROM and voila: Version 7.0 brings an extra assembler. Then you fiddle with machine language!
== Pictures ==
<gallery caption="Fo-dos Layout, thanks to Jose Leandro">
Image:Fodos-PCB-Top.jpg|Fodos-PCB-Top
Image:Fodos-PCB-Bottom.jpg|Fodos-PCB-Bottom
Image:Fodos-PCB.png|Fodos-PCB
Image:Fodos-Layout.png|Fodos-Layout
</gallery>
== Download ==
* [[Media:Amstrad-FODOS-(Eagle).zip|FO-DOS (Eagle).zip]] (FO-DOS files for Eagle)
== Weblinks ==
* [https://cpcrulez.fr/hardware-interface-carte_fo-dos.htm ''FO-DOS'' from CPCrulez]
* [http://hardware.speccy.org/temp/Amstrad-FODOS.html ''FO-DOS'' from hardware.speccy.org]
[[Category:Peripherals]] [[Category:Expansion ROM]]