Answer in one sentences:

(1)What is the work area in the word pad program window?
Ans. Below the menu bar, the wide blank white area with a blinking cursor is the work area of the WordPad program.
(2) Where is the date and time displayed on the Desktop?
Ans. On the right hand side of the taskbar.
(3) What is the use of display box in Calculator Program window?

Ans. To display the output and input of the calculator.