Your desktop or laptop may not be as expensive as your car, but they do require regular maintenance. If you're using a desktop, then it does have tons of peripherals that need cleaning. In case you have a laptop, it's open to trouble caused by things like dust to big ones like accidents.
1. Keep your Keyboard and Cabinet clean
2. Keep Monitor Clean
3. Defragment your hard drives
Full list and full maintenance checklist and how to go about them ==> https://hiideemedia.com/pc-computer-maintenance-checklist/