22
Connecting I/O Devices
The backplane of the mainboard has the following I/O ports:
PS/2 Mouse
Use the upper PS/2 port to connect a PS/2 pointing
device.
PS/2 Ke yboard
Use the lower PS/2 port to connect a PS/2 keyboard.
LPT1
Use LPT1 to connect printers or other parallel communi-
cations devices.
COM1
Use the COM ports to connect serial devices such as
mice or fax/modems. COM1 is identified by the system
as COM1/3. COM2 is identified by the system as
COM2/4.
VGA Port
Connect your monitor to the VGA port.
Audio Ports
Use the three audio ports to connect audio devices. The
first jack is for stereo line-in signal. The second jack is
for stereo line-out signal. The third jack is for micro-
phone.
LAN Port
Connect an RJ-45 jack to the LAN port to connect your
computer to the Network.
USB Ports
Use the USB ports to connect USB devices.
External Connector Color Coding
Many connectors now use standard colors as shown in the table below.
Connector
Color
Audio line-in
Light blue
Audio line-out
Lime
Digital monitor/flat panel
Blue
Microphone
Pink
Parallel
Burgundy
PS/2-compatible keyboard
Purple
PS/2-compatible mouse
Green
Serial
Teal or Turquoise
USB
Black
SCSI, network, telephone, modem
None
This concludes Chapter 2. The next chapter covers the BIOS.