Question

the shape of mouse pointer became and which when it is within the text area

Answer 1

it becomes cursor in the text area

Answer 2

Answer:

The mouse pointer acts as a cursor i.e. like a pointed arrow and then changes into an I-beam cursor within the text area.  

Explanation:

Whenever we move the mouse we can clearly see the arrow type cursor also moves within the text area. Whenever we move the cursor it goes to some hyperlink and it becomes a hand-shaped cursor. Basically it indicates that we can easily open that hyperlink with the help of hand type cursor.