title: definition for data types in assembly language
body: <p>I have to give a concret definition for data types in assembly language.
  And to give example of declaration using variable (with and without initialization) for different kind of data types.</p>
  
  <p>Data types are: byte,word,d-word.
  And example I can say:</p>
  
  <pre><code> a db 10
   b dw 128 (here I can write b db 128?)
   c dd 2AFBH
  </code></pre>
  
  <p>This are examples with initialization, but how I write without initialization?</p>