Well, when I drive the car/PC I try to drive carefully. Miss the potholes when I can, I don't like surprises.
I also like speed but only in the right type of car/PC!
I do like to store the essentials in the car/PC but try not to overload it.
The engine/CPU is important, and I like to keep it serviced.
Inside the car/Motherboard should be kept as clean as possible.
All external parts/peripherals should be checked for loose bolts/cables.
The petrol/power supply needs to be the right grade, and you should not let any other liquids into it.
The injectors/RAM should be checked when the annual service is due.
That's my analogy.