Abstract: The power consumed by a memory is reduced without affecting the performance whereby a processor accesses the memory. A state of a power supplied to the memory is controlled to one of an active state wherein a storage area included in the memory rank can be accessed from the processor, and an inactive state wherein access cannot be performed without a delay for each memory rank, the basic system software prevents fragmentation in which the allocated storage area spans a plurality of memory ranks, puts the power state of a memory rank which does not include an allocated storage area into the inactive state, and puts the power state of a memory rank which includes a storage area required for allocation first into the active state.

Abstract: A computing node which reduces substantially and effectively reduces the power consumed by a memory is provided without affecting the efficiency whereby a processor accesses the memory. The computing node executes a user program sent by a control node. In case of which a message including the capacity of the memory required to execute a user program is received, a memory rank corresponding to the capacity of the required memory is made active by a memory controller before the user program is loaded into the memory.

Abstract: In a server-based computing environment, an environment that is the same as the environment realized on a server is provided to a user at a place where connection to a network can not be established. A virtual computer is constructed on the server. A client can executes an application program on the virtual computer. When the client is disconnected from the network, data required for constructing the virtual computer are saved in a file and that file is sent as it is to the client. On the client, the received file is used to construct the virtual computer, and work is continued on the virtual computer.

Abstract: A technique for identifying a fundamental cause of a system fault in a system in which a plurality of OSs run on one computer. In a system in which each of a plurality of operating systems executes a process by time-sharing hardware of one computer, a plurality of related OSs are stored in advance in association with each other, in a storage means. When a fault is detected in an OS and the storage means stores an OS associated with the OS in which the fault has occurred, a memory dump is performed for the OS in which the fault has occurred and the OS associated with that OS.

Abstract: A computing node which reduces substantially and effectively reduces the power consumed by a memory is provided without affecting the efficiency whereby a processor accesses the memory. The computing node executes a user program sent by a control node. In case of which a message including the capacity of the memory required to execute a user program is received, a memory rank corresponding to the capacity of the required memory is made active by a memory controller before the user program is loaded into the memory.

Abstract: The power consumed by a memory is reduced without affecting the performance whereby a processor accesses the memory. A state of a power supplied to the memory is controlled to one of an active state wherein a storage area included in the memory rank can be accessed from the processor, and an inactive state wherein access cannot be performed without a delay for each memory rank, the basic system software prevents fragmentation in which the allocated storage area spans a plurality of memory ranks, puts the power state of a memory rank which does not include an allocated storage area into the inactive state, and puts the power state of a memory rank which includes a storage area required for allocation first into the active state.

Abstract: A technique for identifying a fundamental cause of a system fault in a system in which a plurality of OSs run on one computer. In a system in which each of a plurality of operating systems executes a process by time-sharing hardware of one computer, a plurality of related OSs are stored in advance in association with each other, in a storage means. When a fault is detected in an OS and the storage means stores an OS associated with the OS in which the fault has occurred, a memory dump is performed for the OS in which the fault has occurred and the OS associated with that OS.

Abstract: The present invention is to provide a remote boot technique for realizing a remote boot easily. A common storage system 100 comprises: when a demand for the remote boot is received from a terminal unit A 200A, means for sending a program for collecting hardware information and software information of the terminal unit, to the demanding terminal unit A 200A; when the hardware information and the software information are received from the demanding terminal unit A 200A, means for creating registry information by using those information; means for sending a program necessary for the boot processing to the demanding terminal unit A 200A according to the registry information; and means for managing a license of the program properly.

Abstract: In a server-based computing environment, an environment that is the same as the environment realized on a server is provided to a user at a place where connection to a network can not be established. A virtual computer is constructed on the server. A client can executes an application program on the virtual computer. When the client is disconnected from the network, data required for constructing the virtual computer are saved in a file and that file is sent as it is to the client. On the client, the received file is used to construct the virtual computer, and work is continued on the virtual computer.

Abstract: If a notebook computer is used with its e-key device inserted in it, it is likely that the e-key device remains inserted in it even when the user carries the notebook computer. In case such notebook computer is left behind or stolen, both the notebook computer and the e-key device are lost or stolen together and it may be possible for the thief to steal information stored in the computer. When the user calls for standby, log-off, or shut-down operation, a message “remove the e-key device” is displayed on the screen and log-off or shut down is disabled until the e-key device is removed. This ensures that the e-key device is removed (when carrying the notebook computer) after log-off or shut down. The risk in which both the computer and the e-key device are stolen together is reduced overwhelmingly.

Abstract: The present invention is to provide a remote boot technique for realizing a remote boot easily. A common storage system 100 comprises: when a demand for the remote boot is received from a terminal unit A 200A, means for sending a program for collecting hardware information and software information of the terminal unit, to the demanding terminal unit A 200A; when the hardware information and the software information are received from the demanding terminal unit A 200A, means for creating registry information by using those information; means for sending a program necessary for the boot processing to the demanding terminal unit A 200A according to the registry information; and means for managing a license of the program properly.

Abstract: A distributed drawing processing system which includes a drawing server for integratedly executing a string of drawing commands transmitted from a client program for graphics display. In the system, the client program divides the drawing command string into a drawing command block of a string of drawing commands processable on a parallel basis and a drawing command block of a string of drawing commands not processable on the parallel basis, and transmits the divided drawing command string blocks to the drawing server. The drawing server executes the drawing command string while judging whether to process it on the parallel or sequential basis with respect to each of the divided drawing command string blocks.

Abstract: A graphics system using a part or the entire part of a plurality of general-purpose processors which can be processed in parallel for output processing which classifies a series of graphics output primitives which are sent to the graphics program from the application program into graphics output primitives which can be operated in parallel and graphics output primitives which cannot be operated in parallel, obtains the frequency of occurrences of graphics output primitives which cannot be operated in parallel among them, and automatically determines the number of processors to be allocated to the graphics program from this frequency of occurrences.

Abstract: An object management system is equipped with a single real object management system for managing a real file object such as data and a program based on a real directory object in a hierarchical structure, and also at least a single virtual object management system for managing a virtual file object corresponding to said file object based upon a virtual directory object which is independent of the directory object in a hierarchical structure.