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Take a look at the best Uninterruptible Power Supply (UPS) for Desktop and Laptop in 2017 and what you should know before buying a new device.
Microphone non-linearity is recognized as a gateway for establishing secret communication channels and as a malicious backdoor for injecting hidden voice commands. In the previous article, Ultrasonic Jammers: All You Need to Know, some representative microphones jamming methods were explained - like RF jammers, audio jammers and ultrasonic jammers.
We discuss video recorders DVR/NVR used in camera surveillance systems, their components, features, best manufacturers of these devices like Hikvision, Dahua, Bosch and others.
The effects of the pandemic are not limited to the health of the society but it has also significantly affected our economy and lifestyle. Precautions to limit the spread of the disease include lockdown of cities, curfew and social distancing.