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Definition:- Li-fi is a technology used for wireless communication. The communication between devices using light as a medium to transmit data at a very high speed. Introduction:- The term Li-Fi was first introduced by Harald Hass at TED Global talks. Professor Harald Hass belongs to Germany and is a Professor of Mobile communication in the University of Edinburgh . Overview:- The working of Li-Fi is pretty similar to Wi-Fi. The only difference being Wi-Fi used radio frequency to transmit data whereas Li-Fi used light to transmit data. The advantage of using Li-Fi over Wi-fi is that it has higher bandwidth and has greater speed on comparison. Technological Stacks:- The optical communication used LED's (light emitting diode) as a medium to transmit data for communication at a very high speed. Visible Light Communication works by switching current to LED's to turn on and off at a high speed. The process is too quick to be identified by the naked human eyes. In oth...

BIOMETRICS:-                Biometrics is an automated methods of recognizing a person based on a physiological or behavorial characteristic. Among the features measured are; face, fingerprints, hand geometry, handwriting, iris, retinal, vein, and voice. TYPES OF BIOMETRICS:- 1 . Finger Print Recognition It is the oldest form of Biometrics. It is highly reliable and it uses distinctive features of fingers. It is an automated method of confirming the identity of any individual based on compression of two fingerprints. 2. Vascular Pattern Matching Vascular pattern recognition, also commonly referred to as vein pattern authentication, uses near-infrared light to reflect or transmit images of blood vessels. In vascular pattern in fingers, near-infrared rays generated from a bank of LEDs penetrate the finger or hand and are absorbed by the hemoglobin the blood 3. Iris Recognition   Iris recognition...

The Future of Foldable Smart Phones! Hello guys, What’s up! It is evident that the technology is growing day by day and for some reason Technology giants have shown interest in Foldable smart phones. This is just because people want bigger smart phones, With better features and the best possible resolution.  The above picture is from a trailer released by Samsung in a bid to say that they are interested in foldable Smart phones. REALITY:- Though Samsung may take time in launching its foldable Smart phone. A Chinese company ZTE recently launched its foldable Smart phone. It’s the ZTE Axon M. This phone is currently unavailable in India. But pre booking for ZTE Axon M is available. This phone will cost you around INR 48000/-.             Though this phone is different from Samsung’s idea of single display foldable Smart phone. ZTE consist of two display, A front and a rear end display  which can b...