Client Access

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  • See Green Screen
  • This is a GUI (Graphical User Interface} for using Microsoft Windows to access AS/400.
  • IBM frequently made improvements in this interface, and changed the name to reflect the new and imporved reality.
    • This happened so often that people could get lost figuring out what is now the official name.
    • Before Client Access there was PC whatever.
    • After Client Access there was iSeries Access.

What is Client Access Infrastructure ?

What is Client / Server ?

  • Client is the computing resource that is USING some resource provided by a Server.
  • Server is the computing resource that is PROVIDING some resource to Clients.
  • There can be a linkage or hierarchy of multiple Clients of Servers, in which the Clients are in turn Servers to other Clients.