Discover what lies inside a computer with the help of friendly robots. Lift the flaps to see how chips work and what really happens on the internet. Fun puzzles and a treasure hunt game illustrate the key concepts of programming, from simple commands to sets of repeating instructions, with real examples in the ScratchT programming language. Includes online links to carefully selected websites where readers can discover even more ideas, tips, and programming games. Computer programming is a mandatory subject in the UK's National Curriculum for primary schools, and children learn to create and debug simple programs at Key Stage 1.