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A New Book About the First Business Computer

The LEO Computers Society with its partner, the Centre for Computer History, Cambridge, has published a second edition of its anthology of very personal memories about the earliest days of business computing: LEO remembered—by the people who worked on the world’s first business computers. This new paperback more than doubles the size of the original 2016 version and includes the testimony of over 85 of LEO’s people, illustrated with contemporary photographs. It introduces the reader to the excitement and challenges of working on a massive mainframe computer at the dawn of the business computer age. It gives vivid glimpses into the social history of the period—the clothes, the food, the pay, two royal visits, the often-neglected role of women in early computing, off-duty activities—even the London smog. The computing world of the 1950s and 1960s is portrayed as it was—the frustrating task of locating and mending faults, the joy and triumph when obstacles are overcome irrespective of one’s actual job, the camaraderie built from working together on never-before-tackled programming problems, the ethos that LEO instilled, which stayed with its people in their later, often very distinguished, careers.