HP Compaq Presario,Presario 3000EA Quick Start Manual page 32

Tip
No.
1
E-mail indicates when you have e-mail waiting to be read.
Note: This light works only with POP3 Internet services. Some
Internet Service Providers do not support this functionality.
2
Sleep indicates the computer is in the sleep mode.
3
Num Lock indicates that you can use the numeric key pad to type
numbers.
4
Caps lock indicates all text typed will appear as capitalized letters.
5
Scroll lock indicates when the scroll-lock function is engaged,
allowing you to scroll through a document without moving the
cursor.
Description