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How to Protect Your Cryptocurrency from Hackers? Hot & Cold Crypto...

We talk a lot about personal security and privacy when it comes to electronics. But nowadays, there’s a new area that we should focus...

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What is PIR Sensor?

How PIR Sensors Work in Spy Security Cameras and Home Alarm Systems? If you haven’t read about motion activated technology and infrared night vision, do...

What is DVR and How it Works?

DVR stands for digital video recorder. It’s more advanced technology than VCR. For home use, DVR’s can record TV shows while turning on at set...