A widespread and dramatic development in the everyday use of computers is the global explosion of mobile devices. From virtually nothing twenty or twenty-five years ago,
mobile phones are rapidly becoming the most ubiquitous form of computing. From Shanghai to Swansea, Budikote to Birmingham, almost a third of the world’s population carries
a mobile phone. Add this staggering number to the music players and cameras pushed in people’s pockets and it’s not hard to see that a very significant part of the digital future will fit into the palm of our hands