Lenovo 8991 Laptop User Manual


 
Connector Description
Mouse connector Used to attach a mouse, trackball, or other pointing device that
uses a standard mouse connector.
Keyboard connector Used to attach a keyboard that uses a standard keyboard
connector.
Serial connector Used to attach an external modem, serial printer, or other
devices that use a 9-pin serial connector.
Parallel connector Used to attach a parallel printer, parallel scanner, or other
devices that use a 25-pin parallel connector.
USB connectors Used to attach a device that requires a Universal Serial Bus
(USB) connection, such as a USB scanner or USB printer. If you
have more than six USB devices, you can purchase a USB hub,
which you can use to connect additional USB devices.
Ethernet connector Used to attach an Ethernet cable for a local area network
(LAN).
Note: To operate the computer within FCC Class B limits, use
a Category 5 Ethernet cable.
Microphone connector Used to attach a microphone to your computer when you want
to record voice or other sounds on the hard disk if you use
speech-recognition software.
Audio line out connector Used to send audio signals from the computer to external
devices, such as powered stereo speakers (speakers with
built-in amplifiers), headphones, multimedia keyboards, or the
audio line in connector on a stereo system or other external
recording device.
Audio line in connector Used to receive audio signals from an external audio device,
such as a stereo system. When you attach an external audio
device, a cable is connected between the audio line out
connector of the device and the audio line in connector of the
computer.
Obtaining device drivers
You can obtain device drivers for operating systems that are not preinstalled at
http://www.lenovo.com/support/ on the World Wide Web. Installation
instructions are provided in README files with the device-driver files.
Chapter 3. Installing options 19