Abstract: The system allows a student to randomly select instructional lessons and also provides sound concurrently with the running of an application program. In one embodiment the training system includes an audio unit that incorporates a cassette recorder and includes a tutorial program operating within the computing device along with the application program the student is working with. In another embodiment the system includes a digital data storage device such as a CDROM drive for providing instructional audio or video output concurrent with the running of the application program. Concurrency is provided by transferring audio or video instructional data through the computing device without passing such data through the CPU of the computing device. This allows the CPU to run the application program independently of the playing of the sound or video output.