In at least one embodiment, the invention includes a modular re-configurable computer and storage system and method of configuring the system. The sensors detect movement of an aerial lift work platform and warn the operator when movement of the aerial lift is detected in order to have the operator verify that safety precautions have been taken to safely operate the aerial lift. Positive authentication is indicated in response to an input resulting in the base image reference point on the modified base image being aligned with the overlay image reference point on the modified overlay image. If a pulse rate difference between the counter and the timer is greater than a standard clock pulse difference, the RTC is unqualified, and if the pulse rate difference between the counter and the timer is less than the standard clock pulse difference, the RTC is qualified. These biaxially oriented polyester films are useful as polyester films for use in a magnetic recording material, an electronic material, a stencil film, a sublimatic ribbon and a package material.