When the computer is powered on, a POST program is executed, and in the setting for enabling a security function, an RFID chip 33 makes Removal Detect Enable a high level and outputs it to the control side of an analog switch 67 and one input of a NAND element 63. The removal of an RF antenna 37 causes...http://www.google.de/patents/US7024700?utm_source=gb-gplus-sharePatent US7024700 - Computer with security function and method therefor
