palmOne Treo 650 - Smartphone 23 MB Using Manual page 194

Option key : The keyboard button that lets you access
the alternative feature that appears above the letter on
each key.
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Palm Desktop software: A PIM application for computers
that helps you manage your personal information and keep
your personal information synchronized with your Treo.
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Palm OS : The operating system of your Treo phone. A
trademark of PalmSource, Palm OS is known for its
simplicity of use and for the large number of applications
that can be added to your Treo.
palmOne™ Quick Install: The component on your Windows
computer that enables you to install Palm OS applications
and other information on your Treo.
Phone/Send : The application on your Treo that
provides quick access to the most commonly used
applications on your Treo.
PIM (personal information manager): A genre of software
that includes applications such as Palm Desktop software,
Microsoft Outlook, Lotus Notes, and ACT!. PIMs generally
store contacts, schedules, tasks, and memos.
PIN (personal identification number): The four-digit
password assigned to your SIM card by your wireless
service provider. Turning on the PIN lock secures your
wireless account. See also PUK.
192 :: Glossary
PUK (PIN unlock key): A special extended password
assigned to your SIM card. If you enter the wrong PIN
more than three times, your SIM will be blocked, and you
must call your wireless service provider for the PUK.
SIM (Subscriber Identity Module): The smartcard, inserted
in your Treo, that contains your Global System for Mobile
Communications (GSM) mobile account information. SIM
cards are portable between GSM phones – your mobile
subscriber information moves to whatever phone houses
the SIM.
SMS (Short Messaging Service): The service that
exchanges short text messages almost instantly between
mobile phones. These messages can usually include up to
160 characters. Treo phones can send and receive text
messages while you are on a voice call.
Username: The name associated with your Treo that
distinguishes it from other Palm Powered
you first synchronize your Treo, you are asked to give it a
username.
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devices. When