Data backups and cloud computing can be treated as two separate subjects in one context and can be considered as complementary in another context. Data backups have been common since the inception of computers. Cloud computing, on the other hand, is a relatively recent phenomenon. The cloud infrastructure helps with effective data backups and is a low-cost disaster recovery option. Data backups help in ensuring restoration of data in case of data loss, data corruption, and data integrity issues.

Together with an explosive growth of the mobile applications and emerging of cloud computing concept, mobile cloud computing (MCC) has been introduced to be a potential technology for mobile services. MCC integrates the cloud computing into the mobile environment and overcomes obstacles related to the performance (e.g., battery life, storage, and bandwidth), environment (e.g., heterogeneity, scalability, and availability), and security (e.g., reliability and privacy) discussed in mobile computing. This paper gives a survey of MCC, which helps general readers have an overview of the .MCC including the definition, architecture, and applications. The issues, existing solutions, and approaches are presented. In addition, the future research directions of MCC are discussed. Copyright © 2011 John Wiley & Sons, Ltd

Hardwired systems are inflexible. General purpose hardware can do different tasks, given correct control signals. Instead of re-wiring, supply a new set of control signals

Data communication in a computer network refers to the process of transferring digital data between two or more devices connected within a network, allowing them to exchange information through a transmission medium like wires or wireless signals, essentially enabling communication between different computer systems by sending and receiving data packets across a network

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Equip yourself with questions and answer to computer architectures.

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The Graphics Pipeline Last Class • Application Stage – Input from the world databases – Collision detection – Morphing – Use of curves and Polygon Vertices ( Implicit curves and parametric curves) • Geometry Stage

HTML5 canvas provides methods which allow modifications directly to the transformation matrix. The transformation matrix must initially be the identity transform. It may then be adjusted using the transformation methods.

Exchange of information through the use of speech, signs or symbols is called communication. When early humans started speaking, some 5,00,000 years ago, that was the first mode of communication. Before we dive into modern technologies that drive communication in contemporary world, we need to know how humans developed better communication techniques to share knowledge with each other.