Toshiba Portege 4000, User Manual

Page: 40 / 278

40
Getting Started
Other precautions
Focusing your eyes on your computer screen for long periods
can cause eyestrain. Look away from the computer frequently
and focus your eyes on a distant object for at least 30 seconds.
Other precautions
Your computer is designed to optimize safety, minimize strain, and
withstand the rigors of travel. However, you should observe
certain precautions to further reduce the risk of personal injury or
damage to the computer.
CAUTIONS: Never apply heavy pressure to the computer or
subject it to sharp impacts. Excessive pressure or impact can
damage computer components or cause your computer to
malfunction.
Some PC Cards can become hot with prolonged use. If two
cards are installed, both can become hot even if only one is
used extensively. Overheating of a PC Card can result in
errors or instability in the PC Card operation.
Be careful when you remove a PC Card that has been used
for a long time.
Setting up your computer
Your computer comes with a rechargeable battery pack that must
be charged before you can use it.
To use external power or to charge the battery, you must attach the
AC adapter. See
“Connecting the AC adapter” on page 41 .
To register your computer online, or to sign up for an Internet
account, you must connect the built-in modem to a telephone line.
See
“Connecting to a phone line” on page 71 .
Before starting to use your computer, you may also want to:
Add more memory. See “Adding memory” on page 59 .