Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,710 pages of information and 247,104 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
1880s Herman Hollerith invented the punched-card technology for use in the US census[1].
1896 Hollerith formed a small business in the United States to manufacture and market his machines, which became the Tabulating Machine Company
c.1901 Robert Percival Porter persuaded Ralegh Phillpotts to raise funds to develop a business in Britain to introduce Hollerith's tabulator[2]
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