Apple Computer Inc has told developers that it will make available the real-time multitasking operating system developed for the 68000 processor used in its Co-processor Platform for the Nubus-based Macintosh II announced in February (CI No 873). According to Microbytes Daily, the operating system now has a name – MR-DOS for Multitasking Real-Time Disk Operating System. MR-DOS is being made available with the Macintosh Co-processor Platform Kit: the $500 board and software includes an unlimited licence to use and distribute the MR-DOS code on hardware boards. The operating system was first used internally by Apple on the MacAPPC card that provides IBM SNA Logical Unit 6.2 emulation. The operating system comes with code down-loaders, dumpers, and tracers, but source code for the operating system will not be released, and developers will have to rely on Apple for maintenance.