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[[Image:Cone.jpg|thumb|C-One mainboard]]
The '''C-One''' ("Commodore-One", later "Computer-One") is a FPGA based reconfigurable computer, manufactured and distributed by [[Jens Schönfeld]]. Initially it was developed by Jeri Ellsworth and is able to run several 8bit machines from the 80ies. Each computer has to be realised with a special so-call called "core", which can be loaded into the FPGA chip. First the C-One should become mainly a modern and powerful C64 clone. But its original main developer Jeri Ellsworth was neither able to create a full running C64 core nor to develop a startup system for the core selection.
So the whole project ran into troubles before [[TobiFlex]] joined the C-ONE team and created the first complete core, the "Amstrad CPC 464 core". He also developed the C-One startup system, which is Amstrad based. Later he released the "TurboCPC core", which is nearly 100% compatible and can also run in 12MHz (later 24MHz) mode. This core is also used in the [[CPC TREX]].
