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Prior Art

From: Dennis Womack <dwomack@catt.com>
Date: Thu, 18 Jun 2009 04:25:13 -0400
Message-Id: <B99E4C53-CD83-48AE-998A-21EC0D14654E@catt.com>
To: public-widgets-pag@w3.org
I believe prior art has existed for many years before Apple's patent  

Automatic update of a running program has long existed in the  
industrial controls world.  There a computer is called a PLC or  
Programmable Logic Controller.  These are microprocessor based  
controls.  They have firmware that runs a user program and the user  
program can be modified on the fly.  For example, look at the Modicon  
model 484, circa 1978 or 1979.  Conceptually, I see no difference.

Thought you'd want to know.

Dennis Womack
Received on Monday, 22 June 2009 08:54:17 UTC

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