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	The Effect of Child Invocation on Screen Display 
 
	Your screen display is affected by the way you invoke a child process: 
	If invoked as a subprocess, a child's images can overlay the images of the parent process.  
	If invoked as a related or detached process, a child's images cannot overlay the images of the parent process. The screen is automatically cleared immediately before the child displays, and is refreshed immediately after the child completes. |