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Cloud ComputingCloud computing is the process of outsourcing IT services, such as data storage and e-mail, to a shared platform accessed remotely through the Internet. This arrangement has been praised for saving money and energy, as a vendor maintains the infrastructure and applications that run in the cloud environment instead of the agency.

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CybersecurityCybersecurity is the protection of all things Internet -- from the networks themselves to the information stored in computer databases and other applications. The concept grew out of necessity as businesses and agencies sent more data and processes online, and it's even more crucial now with the emergence of Web 2.0 technologies, which foster online collaboration and information sharing.

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Green ITGreen information technology is frequently used to describe environmentally sound computing practices. This includes everything from energy-efficient data centers to recycling old or unusable electronics. Making data centers more environmentally friendly has been of considerable importance, as federal data centers account for 1.5 percent of total energy consumption in the United States.

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Health ITHealth information technology, or health IT, generally refers to the exchange of health data -- everything from an individual's health record, which includes images, lab results, prescriptions and medical history, to aggregated health statistics -- among medical facilities, researchers and doctors' offices. Most experts view health IT as a way to improve health outcomes and reduce spending by billions of dollars a year.

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