Abstract: A computer system for relieving an operator's fatigue includes an input device, an image processing circuit, a fatigue determination circuit, and an information generator circuit. The computer system also includes an output device, a response information storage device, and a fatigue degree criteria storage device. The operator's face is captured to create a model image of the face, which is analyzed to determine the fatigue degree of the operator. The response information corresponding to the fatigue degree is output to notify the operator.

Abstract: In a multi-platform environment, data backup is performed which stores data from various different systems on several storage devices depending on the importance of the data and the reliability level of the backup storage devices. That is, data marked as important is stored on a backup storage device having a high reliability level and less important data is backed up onto a backup storage device having a lower reliability level. This allows the cost performance of the backup system to be optimized.

Abstract: A method for providing virus vaccine software that prevents devices from being infected by new viruses. A maintenance server receives virus countering information from a terminal of at least one vaccine software maker and receives vaccine software-related information from a user terminal. The maintenance server confirms whether the user terminal is capable of countering a new virus from the virus countering and vaccine software-related information. When the vaccine software presently used by the user terminal does not correspond to the new virus and the user wishes to be provided with updated vaccine software, the maintenance server distributes a vaccine software capable of countering the new virus to the user terminal.

Abstract: A computer system for relieving an operator's fatigue includes an input device, an image processing circuit, a fatigue determination circuit, and an information generator circuit. The computer system also includes an output device, a response information storage device, and a fatigue degree criteria storage device. The operator's face is captured to create a model image of the face, which is analyzed to determine the fatigue degree of the operator. The response information corresponding to the fatigue degree is output to notify the operator.