What is Cluster Computing
Technology & Science / February 24, 2018

Very often applications need more computing power than a sequential computer can provide. One way of overcoming this limitation is to improve the operating speed of processors and other components so that they can offer the power required by computationally intensive applications. Cluster computing is an increasingly popular high performance computing solution. Cluster computing is not a new area of computing. It is, however, evident that there is a growing interest in its usage in all areas where applications have traditionally used parallel or distributed computing platforms. The mounting interest has been fueled in part by the availability of powerful microprocessors and high-speed networks as off-the-shelf commodity components as well as in part by the rapidly maturing software components available to support high performance and high availability applications. Overview of Cluster Computing Cluster computing is best characterized as the integration of a number of off-the-shelf commodity computers and resources integrated through hardware, networks, and software to behave as a single computer. Initially, the terms cluster computing and high performance computing were viewed as one and the same. However, the technologies available today have redefined the term cluster computing to extend beyond parallel computing to incorporate load-balancing clusters (for example, web…

What is Ubiquitous (Pervasive) Computing
Technology & Science / February 7, 2018

The world is witnessing the birth of a revolutionary computing paradigm that promises to have a profound effect on the way we interact with computers, devices, physical spaces, and other people. This new technology, called ubiquitous computing, envisions a world where embedded processors, computers, sensors, and digital communications are inexpensive commodities that are available everywhere. Ubiquitous computing will surround users with a comfortable and convenient information environment that merges physical and computational infrastructures into an integrated habitat. Overview The dissemination and use of modern information and communication technologies (ICT) are considered to be the preconditions today for dynamic economic growth and future viability in global competition. At the same time, the processes of change triggered, enabled and accelerated by ICT are enormous. Ubiquitous computing is viewed less as a discrete field of technology, but rather as an emerging application of information and communications technology that is integrated into the everyday world more than ever before. The goal is to meet the claim of “everything, always, everywhere” for data processing and transmission through the ubiquity of ICT systems. Ubiquitous computing is a paradigm in which the processing of information is linked with each activity or object as encountered. It involves connecting…

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