When the 
key on the keyboard is OFF , pressing 
on the numeric pad
_____
APerforms the Page Up operation
BInserts the number 9 at the cursor position
CPerforms the Page Down operation
DPerforms the operation of the cursor key
When the key on the keyboard is OFF , pressing on the numeric pad
_____
APerforms the Page Up operation
BInserts the number 9 at the cursor position
CPerforms the Page Down operation
DPerforms the operation of the cursor key