Ntalk
<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.
