title: How does the computer draw a letter?
body: <p>I'm interested in creating a program capable of recognition of numbers, letters, symbols from an  image. But first off, I went ahead and started to think about: How your system displays a letter?</p>
  
  <p>There are so many fonts, font-sizes and other characteristics. I suppose there is an equation used to generate a letter with given parameters, is that true? Or are there other ways in which your system generates letters?</p>
  
  <p>I found such a basic thing so interesting, and I can’t find any information on the web.
  Any ideas?</p>