Recent versions of the MCMTII (starting from 2011), which have undergone a few evolutions since MCMTII has been described on the website, only work with Windows and the non-free PRISM software in versions 7 or 8, or the Ascom driver. MCMTII software is developed by Alcor System, so is PRISM. The purpose of this page is to provide resources that will enable the MCMTII to be controlled by free software on other POSIX-compatible operating systems.