Hour of Code is back for its second year to introduce kids to the world of programming and hopefully inspire a few to take a long-term interest in the field. A host of tech firms are once again getting involved in the initiative, which is run by Code.org, a non-profit dedicated to expanding involvement in computer science by increasing accessibility in schools. Apple, for one, is doing its bit to support Hour of Code, with special workshops taking place at its stores around the world on December 11.