This invention relates to computer engineering and operating system architecture, in particular, it discloses a new method of interaction among operating system components and tasks by means of an interface bus. It introduces OS' interface bus element being part of kernel and acting in similar way as known standard device interface bus but for all OS' components and tasks. Besides, the invention further expands the bus functions by possibility of simultaneous execution of components created for different generations of OS and its microkernels, providing for applications compatibility with any OS and microkernel versions without recompilation, saving user investments, reducing application developer software maintenance costs, and providing for OS component reuse.
This result is conditioned by the use of unique components identifiers taking into account their generations and creation of interface bus access interfaces corresponding to OS components generations. Interaction between a component and a task is performed via Interface bus by referring via a single pointer to a system interface with possibility of choosing any interprocess communication mechanism implemented in components; by using the marshalling mechanism between components and tasks located in various address spaces and by Interface bus expansion with other OS components.