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Issue Report

Collection of full-length papers and in-depth analysis of economic and management issues.

Cloud Computing Services

Cloud Computing Services

CHOI Woo-Seok

Oct. 26, 2010

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Originally released on August 5, 2010

I. Expansion of Cloud Computing Services

Cloud computing refers to Internet-based computing, whereby IT resources are provided to users on demand via Internet access. Cloud computing provides users with IT services such as software, platforms and infrastructure through a "cloud," in which IT resources including servers, storage, networks and applications programs are integrated based on virtualization technology1 and distributed processing.2 As a result, cloud computing has introduced the concept of "leasing" to the way of employing IT resources, which has so far revolved around "purchase and possession."

Cloud computing is emerging as a solution to meet the growing demand for an expanded IT service environment, which has been brought on by the rapid expansion3 of the Internet and the evolution of Web 2.0.4 The IT service environment has transitioned from grid computing, which refers to the combination of computer resources, to utility computing and finally to cloud computing.

Note

1. With virtualization technology, multiple OSs can run simultaneously on the same processing hardware to take advantage of services such as real-time processing and user interface graphics all on one computer.

2. Is the use of more than one processor to perform the processing for an individual task.

3. The total number of global Internet users stood at about 1.8 billion as of the end of December of 2009, a whopping 399% growth from 2000.

4. Examples of Web 2.0 include social-networking sites, blogs, wikis, video-sharing sites, hosted services, web applications, etc. Web 2.0 has greatly contributed to an explosion in digital information.

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