4G  technology is based on OFDM(orthogonal frequency division multiplexing) ,this allows the data to be send over hundreds of parallel streams thus increasing the amount of data that can be send with less complexity as compared to 3G data transfer . The standard systems for 4G are WiMAX, HSDPA, UMTS, and TDD UMTS. The aim [...]

The name cloud computing is inspired by the name “cloud” which means collection of particles (e.g.: smoke, dust or gases) that is visible. And cloud computing refers to the collection of information which is made available on the internet as also which is a commonly used symbol to represent the web in flowcharts and diagrams. [...]

In the ever changing world today, where nothing is constant “change” is the only thing that is constant. This we all might have heard several times. But how and where do we find these changes..?? Is this in our environment, nature, where we see the sun rises and sets at the it’s own time or [...]