HP Compaq Presario,Presario 1500 Maintenance And Service Manual page 39

Product Description
The computer keyboard components are shown in Figure 1-4 and
described in Table 1-7.
Figure 1-4. Keyboard Components
Item Component
F1
1 through
function keys
Num lock
2
1–34
Keyboard Components
F12
key
Table 1-7
Function
Perform preset functions.
Turns on the numeric lock function.
On: Num lock is on and the embedded
numeric keypad is enabled.
Maintenance and Service Guide