| 摘要 |
PCT No. PCT/FR92/01035 Sec. 371 Date Jul. 19, 1994 Sec. 102(e) Date Jul. 19, 1994 PCT Filed Nov. 5, 1992 PCT Pub. No. WO93/09488 PCT Pub. Date May 13, 1993The invention relates to an apparatus which enables, via an elementary manipulation, protection against access to and destruction of data contained in a computer system or deactivation of such protection. The protected computer system may include a housing of a central processing unit (CPU) with its memories, the housing being separate from data access devices. The CPU and memories are connected to the data access devices by connectors which are external to the housing. The housing is defined by an enclosure (18) provided with at least one door or the like. Advantageously a plurality of housings may be defined in the enclosure, each of which housings can benefit from the inventive apparatus. Closing of the door causes a multipolar switch (28) to open, which switch is electrically connected between: links connected to the data access devices located outside the housing; connectors of/from the housing which connectors are to be protected. The door can be closed while still permitting operation of the devices stored in the housing. Reopening of the door causes the contacts of the switch to close, and allows the exchange of data to resume.
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