title: Do the "virtual memory"s mentioned in the 2 articles refer to different things?
body: <p>I've read the following 2 articles explaining the difference between <code>virtual memory</code> and <code>physical memory</code>. One thing that I found confusing is that the term <code>virtual memory</code> seems to mean different things in these 2 articles.</p>
  
  <p><a href="https://www.techwalla.com/articles/difference-virtual-memory-physical-memory_" rel="nofollow noreferrer">What Is the Difference Between Virtual Memory &amp; Physical Memory?</a> says <em>Virtual memory is used when the RAM is filled</em>.</p>
  
  <p>While <a href="https://en.wikipedia.org/wiki/Virtual_memory" rel="nofollow noreferrer">Wikipedia</a> says virtual memory is used to tell programs where the physical memory is.</p>
  
  <p>Is one of the articles wrong? Or does <code>virtual memory</code> have different meaning in different context?</p>