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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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VCR Technology

VCR or video cassette recorder first was invented in 1960’s and became available to general public in seventies. It was created by a giant...

What is PTZ (Pan-Tilt-Zoom) Camera?

Pan/Tilt/Zoom or PTZ camera is a 360 degree angle rotating surveillance camera. Often used in surveillance, CCTV systems. Such cams are usually more expensive,...