| 摘要 |
A method for controlling access to a computer first provides a peripheral device with an identification number, and which is coupled to a computer. Next, the accuracy of the identification number of the coupled peripheral device is verified. Operation of the computer is prevented if the identification number is not correct. On the other hand, if the identification number is correct, a first predetermined time for operation of the computer is counted, and then operation of the computer is prevented after the first predetermined time has elapsed.
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