Universal serial bus (USB) provides a bidirectional serial interface for adding peripheral devices, such as game controllers, serial and parallel ports, and scanners on a single bus. • Plug the USB cable into the USB port on the OmniBook. The device is automatically recognized. Note If you have problems making this connection, contact the vendor of the peripheral device, as well as Hewlett-Packard, for the latest versions of the USB drivers. The USB technology is dynamic and continues to develop. To connect an audio source, a microphone, or headphones Your OmniBook has a built-in microphone above the keyboard and two stereo speakers.
The audio jacks allow you to plug in external audio devices: • Plug a stereo input source (such as a CD player) into the input (left) jack. • Plug the microphone into the microphone (middle) jack. The built-in microphone turns off. • Plug devices such as headphones or external (amplified) speakers into the output (right) jack. The built-in speakers turn off. Caution Do not use mono audio plugs, which can damage the computer. To make an infrared connection Note Windows NT 4.0 does not support infrared communication. 32