Perhaps many problems with a computer, are caused by its hard-drive,. This is a spinning disc, driven by an electric motor.

The motor never gets any maintenance. It doesn't get serviced, cleaned or lubricated.  It just gets electricity put in, when you switch it on

So is it surprising that after years of use,  it eventually breaks down

I mean suppose you have a car, and never have it serviced.  You just put petrol in it, and drive it around. What will happen?