It's no secret that Windows Vista operating system capable of enhancing system performance through technology ReadyBoost. The essence of which is that the user can plug the USB device and use its resources as compensation for a lack of memory machines, and enjoy the full benefits of working Windows Presentation Foundation technology.

This technology is easy to use and can be found long ago. Tom Archer (Tom Archer), the programme manager and strategist on the contents of documents on the development of MSDN Windows Vista and Visual C + + in order to identify the extent to which this technology is effective, conducted a test. The results were quite convincing, Installation and configuration of the USB drive as a memory

Tom Archer chose to drive a standard USB 2.0. to connect to the machine, under the administration of Windows Vista Beta 2, Build 5346. During installation of a dialogue "AutoPlay" through which the user can select how OS should use the device installed. As can be seen from the screenshot, the choice of the 'speed up my system ", will begin work ReadyBoost to increase the speed of the machine.

The next dialog box is a removable properties of the device (disk). It user can specify the amount, of the total device to be reserved for use as a memory. Specialists say that the amount probably used as a flash-file, rather than as a real RAM memory. The more the value of this parameter, the more productivity will result in the machine.

After beginning work ReadyBoost, using Explorer, we can see that the system has a new file Semd.sfcache. If, after installation of a single USB devices through ReadyBoost, a user attempts to install a second is the same operating system Windows Vista will report on the inability to use USB devices.

Technology ReadyBoost allows working with other similar devices, such as SD Card, CompactFlash and others. Basic requirements for USB devices, as follows: USB-drive must have a USB 2.0 interface
The daily capacity of the device to be 3.5 MB / sec for the amount of 4 Kb for arbitrary uniform reading data. And 2.5 Mb / s to 512 Kb for arbitrary uniform recording data on the device.
USB-drive should have at least 64 MB of free space.