Apple Autotester

This device plugs into the joystick port of an Apple II computer. It simulates the pressing of the open-apple and close-apple buttons to launch the internal diagnostics routine of such a computer.

This device was given to me by Karl Grabbe, a former Apple employee at Cork, Ireland.

It was used on the production process to check that the computers were running fine. The process includes the running of the diagnostics more of a long period of time. Having such a device had saved hundreds of hours of engineers or technicians for validating the machines.

Antoine Vignau
8/2014