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Guest Blog

Commentary invited by editors of Scientific American

The Sciences

Cloud Storage

Technology is awash with buzzwords, and one of the most used recently is “cloud computing”. It can be thought of as three layers, each built upon the layer below: Software as a Service (SaaS) –providers install and operate applications for users to access over the internet, ranging from simple office processing to complex customer relationship management systems; Platform as a Service (PaaS) – where providers offer use of a server with, for example, a database system already installed, onto which a user installs and runs their own applications; Infrastructure as a Service (IaaS) – where providers offer access to what appears to be computer hardware, such as disk storage or servers...

May 9, 2012 — Alan Woodward

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