Cloud Computing

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Software as a Service

A model of software development where an application is hosted as a service provided to customers across the internet -Alleviates burden of software maintenance/support

What is Cloud Computing?

A new class of network based computing that takes place over the internet Pooled resource/shared pool of configurable computing resources On-demand network access The "cloud" hides complexity and details of the underlying infrastructure Provisions by the service provider

Threats of cloud computing

Dependence on others, could lead to limitation of flexibility and innovation Security Issues relating to policy and access

What is Cloud Computing good for?

Enables companies and applications, which are system infrastructure dependent, to be infrastructure-less Can result in savings in capital and operational investment

Opportunities of cloud computing

Enables services to be used without any understanding of their infrastructure Storage is done remotely but accessible from "anywhere"

Virtualization

How the boundaries and interfaces between systems and devices may be defined in ways other than by physical location and physical properties

Advantages of cloud computing

Lower computer costs Improved performance Reduced software costs Instant software updates Improved document format compatibility Unlimited storage capacity Increased data reliability Universal document access Latest Version availability Easier group collaboration Device independence

Essential Characteristics

On Demand Self-Service Broad Network Access Rapid elasticity Resource pooling Measured Service

How does Cloud Computing work?

Pay for use and as needed Services available from anywhere Turns computing into a commodity

Disadvantages of cloud computing

Requires a constant internet connection Does not work well with low-speed connections Features might be limited Can be slow Stored data might not be secure Stored data can be lost HPC systems

Would Nicholas Carr believe that cloud computing may provide competitive advantage? If so, under what circumstances, and if not, why not?

Use it to develop cloud applications that competitors didn't have


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