title: Operating System Logical and Physical Address Mapping
body: <p>Question is here:
  Consider a logical-address space of 32 pages with page size 512 words,
  mapped onto a physical memory of 128 frames.</p>
  
  <p>I want to know if my attempting calculation below is correct:
  so far I have come the:
  **</p>
  
  <pre><code>32 pages = 2^5 bits
  512 words = 2^9 bits
  128 frames = 2^7 bits
  </code></pre>
  
  <p>**</p>
  
  <p>How to calculate the logical address and physical address if i <strong>do not know</strong> the word size?</p>