The C-One is sold as a developer-computer. Do not buy it for
what it may become in the future. If you buy, then only buy for what it is
right now. You can get a pretty good idea of what's possible if you follow the
news and the cone_cores Yahoo group. Also, the available cores on the download page
of this website give a fairly good idea of what you can do with the board, even if you
are not a developer.
You will always need a PC with internet connection and a CF card reader in order to fill
your C-One with the latest software. The C-One cannot copy files to the CF card!
Common rumors - true or false?
The NTSC core does not work properly.
This is only true for the NTSC core that Jeri Ellsworth provided in 2004. You can still download
this core from this site for historical reasons, but you are encouraged to use Peter Wendrich's
C64 core, which can be switched between PAL and NTSC while it is running. Truth is, the C-One
can run NTSC C64 software. Peter Wendrich's core is cycle-exact in both NTSC and PAL modes of
operation. This applies to all parts of the C64, including the processor and the VIC-II chip. This
makes it superior to many C64 emulators.
The C-One is an Amstrad/Schneider machine
Sure, it is - in a few of many modes of operation. There are cores that mimic the CPC464 and
CPC6128 computers. Even turbo-variants of the machines can be launched on the C-One. You can
put a number of DSK floppy disk images on the CF card and mount these disk images for easy use in
the Amstrad/Schneider. New operation systems Future oS and SymbOS can be run on the Amstrad/Schneider
cores. While the turbo-version of the Amstrad core is a good 4 times faster than the original machine,
the standard cores try to be as close as possible to the original timing. However, the Z80 processor
of these cores is not cycle-accurate.
The C-One has a PCI slot
Yes, the physical PCI slot is there, but there is no core that makes use of it. At this point,
there is nobody who is even working on support for the PCI slot. If you want to make an FPGA
core that does this, please contact Individual Computers - we will support you with all required
The SD-Ram socket can't be used
False. You can put memory in there and show it's proper function with test-cores
that are available from the download page of this website. The Turbo CPC core makes good use
of the SD-Ram. However, it's the only core that uses the SD-Ram socket, which might be the
explanation of this rumor.
The board is not exactly ATX form factor
True. Some PC cases don't like the fact that the board is about 1mm longer to the back, and the
two audio connectors (RCA connetors) are in the wrong position to reach through holes in the
back of the computer. You will need to drill new holes into the case in order to get the connectors
to the right place.
The C-One is a supercomputer that will outperform any PC
False. Back in 2002/2003, when the initial C-One Yahoo group was extremely busy, some people
really got the wrong idea of a super-computer. We never intended to have something like this.
The C-One is, however, a pioneer of re-configurable computing, and it will always be in the books
as the first computer that allows re-confoguring it's central components on the fly.
The C-One has a SuperVIC and a MonsterSID
False. This, and other empty promises belong to the fairy tale section, which is still online
under "specifications" on this site. Again, this is historical, as it belongs to the
things that the initial developer, Jeri Ellsworth, has promised. Development and bugfixing the
C-One into the form as you can buy it today was mainly done by Tobias Gubener, Peter Wendrich
and Jens Schönfeld. More names of developers can be found in the download section of this
page in each file description.
The C-One has a 65816 processor
True, but it is not used by any core at this point. The bus topology of the C-One only allows
fairly low speeds on the 8-bit bus, so it's better to use a CPU that's inside of the FPGAs instead
of using the slow, external CPU. The 65816 and it's associated 128KByte high-speed ram are included
with every C-One board.
If you have any questions about the C-One, feel free to ask!