Virtual Device Driver: Difference between revisions
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Revision as of 14:56, 20 November 2019
Virtual Device Driver (VDD)
In the OS/2 operating system, a type of device driver used by DOS programs running in a DOS session to access devices, such as the screen or mouse, which must be shared with other processes in the system. The virtual device driver maps DOS device commands to the normal (physical) device driver under OS/2 2.0 and later versions of the operating system.