and several business partners have begun an initiative called the Virtual Desktop Infrastructure Alliance to try to replace individual PCs with virtual machines on a much smaller number of servers. The alliance includes Citrix, ClearCube Technology
, Hewlett-Packard, Wyse Technology, Sun Microsystems, Altiris and Softricity.
VMware's virtualization software, like rival technology from Microsoft and Xen, lets a single computer run several operating systems in compartments called virtual machines. VMware argues that running PCs on centralized virtual machines increases efficiency and eases management.