British Tabulating Machine Company
Early British computer company, producing tabulating machines and early computers.
Last updated August 25, 2026
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Overview
The British Tabulating Machine Company (BTM) was an early British computer company, founded in the early 20th century, producing punched-card tabulating machines and later participating in the development of early electronic computers. The company merged into other companies in the 1960s.
Products and positioning
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