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Developing LEO: The world's first business computer

Working with LEO

The archives of statistician John Sissons include key documents relating to the development of LEO (Lyons Electronic Office), the world's first business computer. A selection of these documents have been digitised in full - including development reports, a 'layman's guide' (or manual) and photographs.

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What has been digitised?

The story of LEO by Professor Frank Land