Dell Inc. (Dell) is a holding company, which conducts its business globally, through its subsidiaries. It offers a range of product categories, including mobility products, desktop personal computers (PCs), software and peripherals, servers and networking, and storage. The services include a range of configurable information technology (IT) and business related services, including infrastructure technology, consulting and applications, and business process services. The Company operates in four global business segments: Large Enterprise, Public, Small and Medium Business, and Consumer. On November 3, 2009, Dell completed the acquisition of Perot Systems Corporation (Perot Systems). In fiscal 2009, the Company completed the acquisition of The Networked Storage Company, MessageOne, Inc. and Allin Corporation.