Keypads; Using The Internal Keypad - HP compaq Hardware Manual

Keypads

The notebook has an internal numeric keypad and supports an
optional external numeric keypad or an optional external
keyboard that includes a numeric keypad.

Using the Internal Keypad

The 15 keys of the embedded numeric keypad can be used like
the keys on an external keypad. When the internal keypad is
turned on, each key on the internal keypad performs the functions
indicated by the icon in the upper right corner of the key.
Embedded numeric keypad components
Item
1
2
3
4
Hardware Guide
Component
Num lock light
num lk
key
Numeric keypad keys
Fn
key
Pointing Devices and Keyboard
2–11