SharePoint Server 2010 is the business collaboration platform for the enterprise and the Web. The platform empowers people and enables them to connect through an integrated set of rich features. This common collaboration environment provides a unified infrastructure, which helps organizations cut costs while allowing them to rapidly respond to business needs. SharePoint Server 2010 can be deployed onsite (also called on-premises) or as hosted services, and can be deployed by using virtualization technology or live instances. Whether on-premises or hosted, deploying SharePoint Server requires the IT pro to be heavily involved. Microsoft SharePoint Server 2010 includes a large number of improvements to features that the administrator is familiar with, and it also includes many new features.
For more information on SharePoint Server for IT Pros, visit the SharePoint Products TechCenter on TechNet.
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Nice presentation :)