SMART CARD-EXPLAINED

In simple words smart card is a credit card with a microprocessor. *This is the microprocessor that is embedded in smart card. Vcc is power supply,Rst is used to reset the card communication,clk is used to provide card with a clock signal,Vpp is programming voltage,Gnd is to provide ground,I/O is serial interface as smart card uses it...

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Working of WI-VI(WIRELESS VISION)

Hi friends,this time came up with new technology "WI-VI(Wireless Vision)".This technology uses  "WI-FI"(Wireless Fidilety) to allow user to look into the walls.This technology analyses the reflected WI-FI signals to estimate an object in a particular room,even if it is in motion we can able to detect the exact location of object. Here...

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Introduction to Zener diode

Hi friends,this time we wanna discuss about zener diode which is heavily doped diode and is specially fabricated to with stand high power dissipation. Main application of zener diode is, it can act as a voltage regulator. Forward characteristics of zener diode: when high potential is applied at anode compared to cathode,then the characteristics...

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TRANSISTOR Disadvantages-MOSFET Advantages

Hi friends,this time i wanna talk about basic electronic devices, they are transistor and mosfet with their disadvantages and advantages respectively. Major disadvantages that i would consider for transistor are, 1.Input impedence 2.Stability I would also explain how these two are advantages for mosfet. 1.Input impedence :  For transistor:Any small input at the base terminal will turn transistor active and make it work...

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Circuit which indicates the charging level of battery

Hi friends ,As the need for rechargeable devices are increasing it is necessary to maintain the life of electronic devices which runs with  battery.Life of any rechargeable device depends upon the usage of charging capacity it has.Overcharging leads to reduce the life of device.Now a days due to overcharging many of the devices are...

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WIRELESS ELECTRICITY-EXPLAINED

Movement of electrons (current) in free space without using any proper conduction path between two electronic devices is referred to as wireless electricity.Long before it is a dream but after a few years it will come true. Everyone knew that conductor has free valence electrons, by applying proper voltage (nothing but force) these electrons move and results current(flow of electrons). 1.Actually the concept of wireless...

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Software's for Win 7 homebasic and Add-on for chrome

Hi friends this time i would like to share two softwares for windows 7 home basic operating system and a Add-on for Chrome browser. 1.Software-"personalization -setupfile" Every user of win 7 home basic will not find personalize option in the popup menu,but where as in win 7 professional , ultimate and home premium, users can have it with which one can change the wallpaper of desktop by one click.To get the personalize option...

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DISPLAY DEVICES-EXPLAINED

HI friends in this post we are going to learn about the various types of DISPLAY DEVICES which we had been known.In this the foremost one is  1.CRT(Cathode ray tube):Experiments to discover more on smallest  particle "atom"(on that time)by J.J thomson, landed him to know about electron.In his experiment he noticed that a ray of particles called electrons(named by G.J stoney) were travelling from cathode to anode,he...

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TRANSMISSION MEDIA

Now a days communication is necessary in every field and to communicate a transmission media is needed. Transmission media is classified into two types. ·         Wire communication (a connection between transmitter and receiver.) ·         Wireless communication (no connection between transmitter and receiver.) 1.       ...

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Li-Fi(Light Fidelity) future wireless communication

In future it is suspected that every light bulb will be replaced by LED's the reason is LI-FI .Li-Fi  is acronym for light fidelity.The word fidelity means the ability of the receiver to reproduce all the signals.Light fidelity indicates transmission of data or information through light or illumination. The inventor defines it simply if LED is ON you transmit a digital '1' and if it is OFF you transmit a digital '0'.Li-Fi...

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chemistry concepts

                           Universe is composed of  matter,during vedic period in india ,maharshi kanada proposed that matter is composed of smallest particles such as "anu" and "paramanu". later a greek philospher proposed that matter consists of smallest particles...

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Ways to improve system performance

Introduction: Now a day’s computer plays a major role in our lives. In any work there is a need of computer.so we have to take care of the system i.e. we have to maintain it properly without decreasing its performance so that we can complete our works fast. Most of the people assume that the amount of RAM memory increases the system...

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Basics in Electronics

1.Purpose of Tank circuit.       To amplify a selective range of frequency this circuit is used.Output impedence(Rc) is replaced by tank circuit Operation:When initially C is charged,it finds path to discharge through L it stores the energy in form of magnetic field.Now according to lenz law,magnetic field start collapsing...

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