Communications

This book is packed with stunning colour photographs and diagrams. Together with a detailed and expertly written text, it provides an accurate, comprehensive account of the topic of Communications for key stage 3 students. Main text is supported by a series of fact files which provide information at a glance: history file, future file, test and fact files. It includes topics such as: how we communicate; telephones, mobile phones and fax machines; the internet; radio and TV broadcasting; digital communications; optical fibres; navigation and GPs; and space communications.