DuckCorp Dico

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1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   ntalk
   new talk
      <chat> ("new talk") An update of the Unix "talk" program,
      old versions of "talk" being referred to as "old talk".  New
      talk and old talk are generally incompatible, and attempts to
      get them to communicate result in entirely unhelpful error
      messages.
      On most modern Unix systems, the program "talk" is new talk,
      with some SunOS versions being a notable and annoying
      exception to this.
      (1997-09-11)