Operation Manual

14
request) and I/O address of the port, by using the system setup
utility.(See Chapter 3)
Using the Serial Port
The 9-pin serial port can be used to connect your notebook to serial
devices such as a serial mouse, an external fax/modem, and so on.
This serial port is identified by your notebook same as COM1. Your
notebook also runs the infrared transceiver through a serial port called
COM2, and, if the optional fax/modem is installed, it is identified as
either COM3 or COM4.
Using the Parallel Port
The 25-pin parallel port is usually used to connect your notebook to a
parallel device such as a printer or a plotter. When you add a printer to
your system, you usually need to load a driver for the printer from the
original Windows CD or diskettes. The
Printer
icon in the
Control Panel
has an
Add New Printer
icon to help you install a printer. The parallel
port is identified by your notebook as LPT1.
The parallel port can support advanced parallel communications such
as ECP (Extended Capabilities Port) or EPP (Enhanced Parallel Port).
If your notebook is connected to a device that supports these
standards, use the setup utility to change the parallel port to support
ECP or EPP for better performance. See Chapter 3 for more
information.
Using the USB Ports
The USB (Universal Serial Bus) port is a new interface for computers. It
is designed for use by devices which do not require very high rates of
transmission, such as a mouse, a keyboard, etc.
The advantage of the USB interface is that it can support many devices
all connected to a single cable (or series of connected cables). All the
devices can connect to the notebook through a single USB port.
Devices on the USB port do not have the problem of conflicting with
each other by using the same IRQs.