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Difference between LED lamps and other lamps

The light source in them is a diode consisting aof tiny crystals. In other types of lamps, light radiates from a hot coil, gas or mercury.
One of the popular questions: how does the LED lamp differ from the LED. The answer is: nothing. These are two names of one kind of lamps. […]

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Digital Signature in USA

The concept of electronic digital signature and its technical security In the world of electronic documents, signing a file with graphic symbols loses its meaning, since a graphic symbol can be forged and copied an infinite number of times. Electronic Digital Signature (EDS) is a complete electronic analog of a conventional signature on paper, but […]

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