In this unit the children will begin to learn about how computers can be used to control other devices. They will understand how many everyday, household devices, such as washing machines, dishwashers and microwaves rely on computer technology. They will also identify other examples in everyday life of computer-controlled technology, such as traffic lights and will look at situations in which computers are used to control different types of vehicles. They will begin to understand that computers need a precise, defined set of instructions to function effectively and that computers may seem ‘clever’ but in fact they only do what they are told. The children will also have the opportunity to program a computer-controlled vehicle themselves in order to complete a set challenge.