[inforoots] Bold and not bold

[David Pinto]

Hello.
   
  This is possibly a little removed from the usual posts to the list.
   
  Over the past few decades, we have all read hundreds of articles explaining how computers came to be.
   
  Yet most of these articles do not explain the various small intricacies of the internet world.
   
  Here's an example.
   
  When I call up the inbox of my yahoo account, all the subject lines which I have not yet opened are in boldface.
   
  Let's suppose I click on a given subject line.
   
  I read the item and then close it.
   
  If I then call up the inbox again, that particular subject line is no longer in boldface. It is in light face.
   
  The reason the subject line changes from bold face to light face is somehow buried somewhere in the computer program. Fine, but my question is how this idea was developed. Someone thought of this angle. Why? This does not seem like the sort of idea that most of us would have. And also, is there a purpose to this beyond the obvious one?
   
  Sorry if my question is a little difficult to understand, but I like to think that most people on this list will understand what I am trying to say.
   
  David Pinto
  Montreal, Canada
  david_e_pinto at yahoo.ca
   
   

       
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