title: What does DIM do and how would I use it in batch, what other languages should I use?
body: <p>I'm programming a basic checkers program from a pdf of very old computer games found <a href="http://bitsavers.trailing-edge.com/pdf/dec/_Books/101_BASIC_Computer_Games_Mar75.pdf" rel="nofollow noreferrer">here</a><br>
  <img src="https://i.stack.imgur.com/cULuI.jpg" alt="enter image description here">
  using windows batch, but the program listing calls for DIM What does that do? And other than BASIC what better languages could I use?</p>