I've seen lines of tiny black ants that don't bite crawling in trough t crack in one of my windows. I see a few of them crawling on my computers. I also see them eating bits of food. Once I left a zebra cake wrapped in plastic (It wasn't sealed though) the next day I put it in my lunch box with out thinking and I found a ton of these ants eating my lunch. This has been going on for like, 3 months. How do I get them out of my house without getting a pest control specialist?? Also will they hurt my computer?? Please Help.