The idea of virtual memory is to create a virtual address space that doesn't correspond to actual addresses in RAM. The system stores the official copy of memory on disk and caches only the most frequently used data in RAM. To make this workable, we break virtual memory into chunks called pages; a typical page size is four kilobytes. We also break RAM into page frames, each the same size as a page, ready to hold any page of virtual memory.
I'm running a Linux system and the swap area is empty, because there's enough space in main memory. That being said, is there still a virtual memory with pages and will processes continue to have virtual addresses instead of the physical addresses of their segments in the main memory?
What if there's no swap area in disk, is there a virtual memory in the system too?
In simple words, is virtual memory always available in a Linux system and will process always have virtual addresses?
