Patent ID: 6125411
Filing Date: 2000-09-26
Classification: G06F

Abstract:
An electronic computer system in which a plurality of operating systems are operated; including a central processing unit for executing a variety of instructions, a plurality of channels being controlled by said central processing unit and a plurality of input-output units being connected to an arbitrary channel of said plurality of channels; said electronic computer system executing an input-output processing based on input-output arrangement information which defines an input-output arrangement; characterized in that said central processing unit includes storage means for storing a plurality of input-output arrangement information created in response to more than two operating systems in said plurality of operating systems, supervising means for supervising whether said plurality of operating systems issue an input-output request or not, first recognizing means for identifying an arbitrary one of said operating systems when an input-output request is issued from said arbitrary operating system and recognizing said arbitrary operating system, second recognizing means for recognizing input-output arrangement information corresponding to said operating system, and input-output executing means for executing an input-output processing based on said recognized input-output arrangement information stored in said storing means.