Stored data and user preferences enable roaming users to access applications and data as if they were using their own desktop machine.

A data source can reside on a remote server, or it can be on a local desktop machine.

As the cost of solid-state memory comes down we should soon see them in more middle-of-the-road laptops and even some desktop machines.

Dell was a pioneer in the push to place affordable desktop machines in millions of homes and businesses around the world, but it has struggled under pressure from lower-cost rivals.

The server coordinates this information, stores it in a database and communicates with sguil clients running on administrators' desktop machines.