Business machine is a somewhat obsolete term for a machine that assists in the clerical activities common in business companies. Examples include:

• Tabulating machine
• Accounting machine
• Adding machine
• Typewriter
• Computer
• Photocopier

• International Business Machines, better known as IBM

• John Strider Coleman, The Business Machine: With Mention of William Seward Burroughs, Joseph Boyer, and Others, Since 1880, Literary Licensing, LLC, 2013 ISBN 1258621770.
• James W. Cortada, Before the Computer: IBM, NCR, Burroughs, and Remington Rand and the Industry They Created, 1865-1956, Princeton University Press, 2015 ISBN 1400872766.

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