All members of the Extensa 450 family feature TI’s patented power management
subsystem (hardware and software) that provides longer portable operation and
protection of files during low battery conditions.
1.4.5 Wireless Connection With Serial Infrared Port
The Extensa series notebooks are equipped with a Serial Infrared (IR) port that
offers wireless communication with a variety of IRDA-compliant devices made by
other manufacturers.
n Note: Prior to communicating with an external device equipped with a serial infra-
red interface, the appropriate third-party drivers must be installed on your note-
book.
1.4.6 Preloaded Software
All members of the Extensa 450 Notebook family are preloaded with the Windows
95 Operating System. In addition, Extensa Models 455 and 455T come standard
with the following application packages installed:
• Microsoft Works
• Quicken SE
• Lotus Organizer
• Microsoft Entertainment Pack No. 4
1.4.7 Notebook Expansion Capabilities
Expansion capabilities built into the Extensa notebook series include:
• User installable expansion RAM memory (to a maximum of 32 MB)
• By removing the floppy drive, you can add either a second battery pack or a
Type III PCMCIA device with option.
• A Cable Connect PS/2 Numeric Keypad option, P/N 2581381-0001, can be
attached to either of the two external PS/2 Ports.
• A parallel device can be attached to the notebook’s external 25-pin parallel port
(EPP/ECP compatible).
• With the port adapter installed (supplied with the notebook), the notebook’s
expansion bus is adapted to provide the following external ports:
– Serial RS-232 Port for attaching any serial device
– External VGA Port for driving an external color monitor
– Second PS/2 Port for attaching an external keyboard or mouse
General Description 1-9
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