Samsung Galaxy Tab 8.9 - Manual (Page 148)

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Memory Usage
See how memory is being used by Downloaded, All, or Running
applications.
1. From a Home screen, touch Apps ➔ Settings
➔ Applications ➔ Memory usage .
2.
Touch Downloaded, All, or Running to display memory
usage for that category of applications.
Battery Use
See how the battery is being used by device activities.
1.
From a Home screen, touch Apps ➔ Settings
➔ Applications .
2. Touch Battery use to view how the display, the Android
system, and Wi-Fi are affecting battery use.
3.
Touch Screen, Android System, or Wi-Fi to view details.
Note: Other applications may be running that affect battery use.
Unknown Sources
Enable or disable installation of non-Market applications.
1. From a Home screen, touch Apps ➔ Settings
➔ Applications .
2.
Touch Unknown sources and touch OK to allow installation
of non-Market applications.
Warning!: Enabling this option causes your tablet and personal data to be
more vulnerable to attack by applications from unknown sources.
Development
Set options for application development.
USB Debugging
When enabled, allows debugging when the device is attached to
a PC by a USB cable.
Note: This setting is used for development purposes.
1. From a Home screen, touch Apps ➔ Settings
➔ Applications ➔ Development .
2.
Touch USB debugging to enable or disable the setting.
When enabled, a check mark appears in the check box.