Hitachi, Ltd.

Kazuo Matsunaga

Toshiaki Hirata

Osamu Takada

Seiichi Susaki

Katsuyuki Umezawa

Makoto Kitagawa

Takeshi Kondou

Seiji Miyazaki

Hisashi Umeki

A client-server system is provided in which access to a service by a user can properly be controlled, even if an approval by another user is required for receiving the service. First, the server,executes a log-in processing by using a user identifier and password transmitted from the client terminal,, and a user control file,. Next, the server,executes a service control by using a service supply request transmitted from the client terminal,and a service control file,provided with the server. When the server determines that an approval by another user is required for providing the service, the server executes the approval request to the client terminal,that the concerned user uses. When the reply to the approval request is affirmative, the server executes the processing in accordance with the foregoing service supply request. When the reply is negative, the server informs to the user who made the foregoing service supply request that the approval is rejected.

Client-server system for controlling access rights to certain services by a user of a client terminal

Disclosed herein is a computer system which comprises a plurality of input/output devices, an adapter device coupled to the plurality of input/output devices and a main processing unit for supplying an input/output request to each of the plurality of input/output devices through the adapter device. A plurality of input/output commands are respectively issued to the plurality of input/output devices from the main processing unit as one input/output start command. The adapter device specifies to which input/output devices the plurality of input/output commands included in the one input/output start command correspond. Further, the adapter device supplies input/output commands to the specified input/output devices respectively.

Computer system and method of issuing input/output commands therefrom

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Yokohama, Japan

Kazuo Matsunaga