Can Lightning Cause Computer?

Yes it can if there is a downed power line. Also an electrical surge can damage the computer and other appliances in homes.

Yes it can cause computer

Yes definitely can impact your computer I remember when I was little we had a lightning strike completely fry our nintendo wii then several years later we plugged it in just to see and it worked perfectly and still works perfectly to this day

Maybe there is a line down outside that leads to your house idk just making a suggestion.