Security alarm device for a computer

摘要

The device comprises a control element (25) and connected thereto means for detecting movement of the computer (26), means for detecting tampering with the computer (27) and means for raising an alarm (29, 30). The control element (25) is arranged to raise an alarm if movement or tampering is detected. The tampering detecting means uses a microswitch to detect removal of the computer housing. The device is mounted on a printed circuit board fitted into an expansion slot of the computer.