| 摘要 |
<p>A computer system having a security device in which a power is not applied without a key so as to thereby prevent usage of the computer when lost, has at a main body thereof a sticker printed with a finder's guide, so that the lost computer may easily be returned to the owner. When anyone attempts to move the computer without allowance, vibration detecting means detect a vibration of the computer, and a signal is output to a microprocessor which controls alarm generating means to generate an alarm so as to prevent a theft of the computer. The computer operates only when the user password stored in the key is read by key reading means. When any person who is not the owner attempts to operate the computer, an alarm beep warning that the password is not matched is generated by key reading means, and a power is not applied to the computer. When disassembly/damage detecting means detect an impact or damage of the main body of the computer, alarm generating means generate an alarm being controlled by the microprocessor, and simultaneously, data deleting means which receives a control signal outputted from the microprocessor delete the data stored in the hard disk driver, and circuit damage means destruct a circuit of the computer by applying a high voltage to the primary circuit, thus preventing the data stored in the memory device of the computer from being read by other person who is not the owner.</p> |
