Can a computer be damaged by moist, salty sea air?

Laptop / PC / cell phone?

Well. Where is he standing? On the beach or how?

Less than 500m from the sea.

Yes, not the chips themselves, they are safe under IHS but all connections and contacts can corrode.

So in the house? Rather unlikely

Salt water actually attacks everything. The board will rust sooner or later.

Iodized air is good for wellis ;-))