Sun Microsystems has signed a deal with Office Depot to upgrade or replace their computer systems. The systems are used to keep records of the 50,000 employees and 870 stores managed by the company.

The contract also lists Sun as the "preferred vendor" for Unix based systems, and Office Depot will begin to sell the StarOffice productivity software that Sun manufactures.

Sun Fire servers will be replacing the current IBM mainframe used for management of inventory. Sun's Marty Robins says, "It's replacing a homegrown, legacy application--they've had it for quite some time."