Filter
Top Products
Chapter 2 Features 17
Ambient light sensor (ALS)
If you have dynamic brightness selected and are running on battery power, the ambient
light sensor measures the surrounding light and adjusts the display brightness and contrast
accordingly. This ensures that you have proper settings for all lighting conditions. To enable
dynamic brightness, see “Adjusting the display brightness” on page 32.
Motion DataGuard
For J3400 tablets using a hard disk drive (spinning media), the DataGuard feature is
included, which detects shocks, extreme vibrations, and falls. If these conditions are
detected, DataGuard moves the drive heads away from the disk, which can prevent hard
drive failures and data loss. For more information, go to Control Panel and open DataGuard.
USB 2.0 ports
Two USB 2.0 (High-speed USB) ports can be used to attach any USB device such as a mouse,
digital camera, printer, or external storage device. The USB ports are compatible with older
USB devices (USB 1.1).
For more information, see “Using USB” on page 29.
Headphones port
The headphones port is on the left edge of the Tablet PC. It is marked with a small
headphones symbol and is designed as an audio output channel only. You can attach
headphones or external speakers to this port.
For more information, see “Connecting headphones, external speakers, or a microphone”
on page 34.
Microphone port
The microphone port is on the left edge of the Tablet PC. It is marked with a small
microphone symbol and is designed as an audio input/line in channel only. You can attach
an external microphone directly to this port to enhance your audio recording capabilities.
The internal microphones are disabled when an external microphone is attached.
For more information, see “Connecting headphones, external speakers, or a microphone”
on page 34.