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Defining Cluster

Let's not take the definition of cluster for granted. In essence, a cluster is a collection of networked computing resources and services, collapsed into a logical entity that masquerades as a single computer system. When we say cluster, in typical human fashion, we collapse a lot of complexity into a single word. This is similar to a user who says, "The network is sure slow today."

I use the following formal definition for cluster:

  • A closely coupled, scalable collection of interconnected computer systems, sharing common hardware and software infrastructure, providing a parallel set of resources to services or applications, for improved performance, throughput, or availability.

This formal definition still doesn't tell us how the word is being used by a particular group of people. Remember that the word cluster has an overloaded meaning. Saying cluster to a scientist will trigger a different picture and set of expectations than if you mention the term to an IT person. Make sure that your audience understands and agrees with your use of the word.

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Other Collection and Use of Information


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Marketing


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Sale of Personal Information


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Supplemental Privacy Statement for California Residents


California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


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Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020