A key language element was the support for virtual files.

In 2009, Google continued to experience outages across its network, leaving users without access to their email, calendars, and virtual files.

"The virtual file is one of the best tools the F.B.I. would have in fighting terrorism," Mr. Schumer said.

Like procfs, it does not consist of actual files on media but instead allows processes to access system information by accessing virtual files.

They are really virtual files that exist, in reality, as objects within the operating system kernel.

The virtual files and registry data are instantly written to the flash drive and immediately encrypted.

Special DOSBox commands allow to manipulate configuration options within a guest VDM, there is no corresponding virtual file.

If the application is reading a virtual file, VMware ThinApp handles the request itself otherwise the request will be passed on to the operating system.

Under appear directories representing the areas of kernel, containing readable and writable virtual files.

Each query is issued against a single dictionary within the schema, which could be understood as a virtual file or a portal to the database through which to view the data.