TechnologyA message for today from last century's vast telephone exchanges A telecommunications museum in Seattle, with a working exchange from the 1940s, shows how telephones brought us together – but also tore us apart, says Annalee NewitzComment
TechnologyMagnetic tape: The surprisingly retro way big tech stores your data From family photos to particle physics data, we generate stupendous amounts of digital information - and much of it is stored on old-fashioned plastic cartridges Features