Nokia N81 - Manual (Page 86)

Applications
86
The city is displayed in the clock main view, and the time
in your device is changed according to the city selected.
Check that the time is correct and matches your time
zone.
Calculator
Press , and select Applications > Calculator .
Note: This calculator has limited accuracy and is
designed for simple calculations.
Notes
To write notes in .txt format, press , and select
Applications > Notes .
Application manager
Press , and select Applications > App. mgr. . You can
install two types of applications and software to your
device:
• J2ME TM applications based on Java TM technology with
the extension .jad or .jar ( ).
• Other applications and software suitable for the
Symbian operating system (
). The installation files
have the .sis extension. Only install software
specifically designed for your Nokia N81. Software
providers will often refer to the official model number
of this product: the Nokia N81-1.
Installation files may be transferred to your device from a
compatible computer, downloaded during browsing, or
sent to you in a multimedia message, as an e-mail
attachment, or using Bluetooth connectivity. You can use
Nokia Application Installer in Nokia Nseries PC Suite to
install an application to your device.
Install applications and software
indicates a .sis application, a Java application,
that the application is not fully installed, and that the
application is installed in the memory card.
Important: Only install and use applications and
other software from trusted sources, such as applications
that are Symbian Signed or have passed the Java Verified
TM
testing.
Before installation, note the following:
• To view the application type, version number, and the
supplier or manufacturer of the application, select
Options > View details .
To display the security certificate details of the
application, in
Certificates , select View details . See
‘Certificate management’, p. 120.
• If you install a file that contains an update or repair to
an existing application, you can only restore the