Iyonix PC
The Iyonix PC was an Acorn-clone personal computer sold by Castle Technology and Iyonix Ltd between 2002 and 2008. According to news site Slashdot, it was the first personal computer to use Intel's XScale processor. It ran RISC OS 5.
History
The Iyonix originated as a secret project by Pace engineers in connection with development of set-top boxes (STBs), and has been noted as a successor to the Risc PC. Pace had a licence to develop RISCOS Ltd's OS sources for use in the STB market. The Iyonix was developed under the code name Tungsten and uses RISC OS 5, which is a version of RISC OS that supports ARM CPUs with 32-bit addressing modes. The sources and hardware design were subsequently acquired by Castle, who developed them into the final product. Castle continued to keep the project a secret, requiring developers to sign a non-disclosure agreement. Information was distributed to such developers via a confidential section of the website. Customers were occasionally able to buy the computer as a bare bones system for self-assembly.