Ghosts are representative of something that is no longer obtainable or within reach. It indicates that you are feeling disconnected from life and society. Try to figure out what the ghosts wants or what it is looking for. Alternatively, the dream may be a calling for you to move on and abandon your outdated modes of thinking and behavior. - Dreammoods.com dictionary
The meaning depends a lot on what these computers mean to you and what you use them for, but also your lifestyle. The boy must be your own inner boy as left behind. The woman is something reclusive and perhaps you're angry at yourself.