Virtual Computers

Throughout the computer industry companies of all sizes, from garage startups to Microsoft, are bracing for the possibility that their future will be in the hands of people like Sean Whetstone! The computers that Whetstone brought in for his employees aren't the traditional metal boxes that sit next to desks or under monitors. They are "virtual" computers. Each employee has a keyboard and a screen, but the processors making the calculations and deciding what color goes in each pixel are far away, inside a big computer at Reed's main data center in London.

Switching to virtualized desktops is often expensive at the outset because the networking software is complicated. But the maintenance costs are a lot lower. When something goes wrong--say, a computer has a software error--Whetstone doesn't need to send someone from tech support out to the employee's desk. Instead, a technician simply logs on to the main computer and tinkers with the program running there. Whetstone expects to save 20%, or $2.4 million a year, off his technology expenses.

Next year will likely be the start of a large upgrade for PCs as big companies switch to Windows 7, Microsoft's latest operating system. With about halfbillion workplace computers around the world and $3 trillion spent each year on corporate computing, that ordinarily would mean a lot of purchase orders for big, brawny new hardware.

Desktop virtualization, however, threatens to break that pattern. Instead of spending $1,000 for a system with the latest Intel chip and a fast hard drive, a company might get by with a virtualized PC running on a screen, keyboard and network connector costing in all only $150. The corporate customer gets the promise of lower support costs plus the security and simplicity that come from having data in one carefully guarded place.

A burgeoning virtualization industry is pushing the technology as the next big thing in computing. Large tech companies like Microsoft and Cisco are bracing themselves in case it turns out to be just that. "In the entire computer industry, no topic is of greater interest right now than desktop virtualization," says Mark Margevicius, analyst at research firm Gartner. "Everyone, everywhere is asking about it."

Desktop virtualization is Act II of a tech shift that began earlier in the decade involving the servers that labor behind the scenes, running databases and hosting Web sites. While crucial to a company's operations, servers tend to be busy only in spurts, spending much of their time sitting idle. At the start of the decade, when a new breed of software made it possible to make one piece of hardware act as if it were several servers, companies embarked on a wave of server consolidation. By next year, estimates Gartner, half of all serverbased computing will be on virtual machines.