A transparent system management interrupt (SMI) handler equipped with system security functions is provided to a personal computer (PC) for providing system security to the PC. Additionally, the keyboard controlling facility of the PC is enhanced to cooperate with the SMI handler...http://www.google.fr/patents/US5724027?utm_source=gb-gplus-shareBrevet US5724027 - Method and apparatus for providing system security to personal computer systems using transparent system interrupt
Method and apparatus for providing system security to personal computer ...
