Snap it, click it, use it

摘要

Negotiating his way across a crowded concourse at a busy railway station, a traveller removes his phone from his pocket and, using its camera, photographs a bar code printed on a poster. He then looks at the phone to read details of the train timetable displayed there. In Japan, such conveniences are commonplace, and almost all handsets come with the bar code-reading software already loaded.