Apple senior IT director Dean Rally on Thursday disclosed some interesting information on how Apple runs its own business on a great deal of Apple machines. “Rally said Xserve is the mainstay of Apple’s corporate data center, with the rack-mounted server being used to deliver Web pages, files and applications, as well as for authentication and security,” reports CNET “The company does use a smattering of Sun Microsystems servers to power, among other things, its e-mail systems. Apple also has some servers running IBM’s AIX operating system. As for software, the company does use Microsoft Office for the Mac, but uses its own products for most desktop tasks, including e-mail, instant messaging and Web browsing. As for enterprise applications, Apple is a longtime SAP customer, uses PeopleSoft 8 for customer relationship management and runs software from i2 for forecasting.”