How the Computer Changed History examines the development of the computer, how it works, and how it has become a standard machine used in businesses, homes, and industries. Features include essential facts, a glossary, selected bibliography, websites, source notes, and an index, plus a timeline and maps, charts, and diagrams. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.