Ad hoc, also known as Ad hoc mode, refers to a short-term wireless network framework created between two or more wireless network adapters without going through an access point. In other words, an Ad hoc network allows computers to "talk" (send data) directly to and from one another. Ad hoc networks are handy for quickly trading files when you have no other way of connecting two or more computers. For an ad hoc network to work, each computer on the network needs a wireless network card installed, and you must set your wireless network cards (installed in each computer on the network) to Ad Hoc mode.