X-rays are commonly produced by accelerating (or decelerating) charged particles; examples include a beam of electrons striking a metal plate in an X-ray tube and a circulating beam of electrons in a synchrotron particle accelerator or storage ring.
Examine your computer for jacks and ports that support your audio device. The location of certain jacks and ports will vary depending on your computer's make and model. For example, most jacks on a desktop computer will be located in the back; whereas jacks on a laptop computer are usually located on its sides.
If using the Acoustic Labs Multitrack Plus with a laptop the audio input and output plugs are usually located either on the side or back of the laptop. The plugs may or may not be color coded as explained above. However, they will most often have the small icons as shown in the image to the right.