1. <architecture> A memory location accessed by an application program in a system with virtual memory such that intervening hardware and/or software maps the virtual address to real (physical) memory.
During the course of execution of an application, the same virtual address may be mapped to many different physical addresses as data and programs are paged out and paged in to other locations.
2. In IBM's VM operating system, Virtual Device Location.
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virtual 86 mode
Dynamic Address Translation
Memory Management Unit
Virtual Circuit Identifier
Virtual Control Program Interface