What Are Pbo And Pai?

1.	What Are Pbo And Pai?
Answer» Process before output. CODE that is executed prior to the display of a screen. Process after INPUT. Code that is executed after a BUTTON on the screen has been PRESSED.

Answer»

Process before output. CODE that is executed prior to the display of a screen.
Process after INPUT. Code that is executed after a BUTTON on the screen has been PRESSED.

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