3 engineers travel on a desert road in a good old '76 VW Beetle. One is a mechanical engineer, the second one is an electric engineer and the last one is a computer engineer.

The VW Beetle starts making weird engine noises and stops. Then, the mechanical engineer goes back, looks at it for a couple hours and gives his veredict:

"This thing needs a complete overhaul of all friction components, plus the warpage limits of the engine heads are beyond specifications..."

The electrical engineer takes over and starts staring at the engine...after three hours he gives out his veredict:

"This thing isn't working because the voltage present on the battery is not enough, and the electromagnetic effect of the generator is too low for the car to run correctly..."

The computer engineer stares at the engine bay for 6 hours, looking under the mass of cables, hoses, until he stands up and tells his companions:
"We are doomed. I can't find the reset button on this thing!!!"