Before revision: The Baudot code was used on the earliest ticker tape machines (Calahan, 1867), a system for mass distributing current financial information.Richard E. Smith, Elementary Information Security, p. 433, Jones & Bartlett Publishers, 2015 .
After revision: The Baudot code was used on the earliest ticker tape machines (Calahan, 1867), a system for mass distributing current stock price information.Richard E. Smith, Elementary Information Security, p. 433, Jones & Bartlett Publishers, 2015 .