Compaq 4103TH manual Understanding the System Status Lights, Numbers, Cursor

The system lights on the keyboard provide a quick status of your computer and keyboard settings.

Tip

Post Office Protocol (POP) is a commonly used messaging protocol. The most widely used implementation of this protocol is POP3. POP3 is a retrieval protocol, used to retrieve mail messages from a POP server. E-mail messages received by the POP server are delivered to a server mailbox and messages reside there until you retrieve them.

Understanding the System Status Lights

The system status lights are shown in the following illustration, and the function of each light is explained.

No.	Description
1	E-mailindicates when you have e-mail waiting to be read.
	Note: This light only works with POP3 Internet services. The light
	does not work with proprietary Internet services such as AOL.
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 capitalised letters.
5	Scroll lock indicates when the scroll-lock function is engaged,
	allowing you to scroll through a document without moving the
	cursor.

MY PRESARIO—GETTING STARTED USING YOUR COMPUTER 2-9