Personal computer system with security features and method

  • US 5,388,156 A
  • Filed: 02/26/1992
  • Issued: 02/07/1995
  • Est. Priority Date: 02/26/1992
  • Status: Expired due to Term
First Claim
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1. A personal computer system for receiving and retaining data and capable of securing data retained within the system against unauthorized access, the system comprising:

  • a normally closed enclosure,an erasable memory element mounted within said enclosure for selective activation to active and inactive states and for receiving and storing a security password when in the active state,a manually operable option switch mounted within said enclosure, said option switch being operatively connected with said erasable memory element and manually settable by a user of the personal computer system for setting said erasable memory element to the active and inactive states,a tamper detection switch mounted within said enclosure and operatively connected with said erasable memory element for detecting opening of said enclosure and for clearing any stored security password from said erasable memory element in response to any switching of said tamper switch, anda system processor mounted within said enclosure and operatively connected with said erasable memory element for controlling access to at least certain levels of data stored within the system by distinguishing between the active and inactive states of said memory element and between entry and non-entry of any stored security password.

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