When a child with disabilities uses a technology device to do something that she could otherwise not to do, the technology device is labeled, or AT: while most children can communicate using words, gestures, and facial expressions, as a child with communication challenges may be able to express ideas and needs only by pointing to a picture, using a voice output device, or touching a tablet with a communication application (or app). A child without mobility difficult may be able to get around easily by walking. " While technology is engaging for most young children, for some children, technology is much more: it allowa them to do things that would otherwise not be possible".