In information science, Ralph Hartley (1888-1970) was an American electronics engineer noted for having explained why the logarithmic function is the most natural choice for the quantitative measure of information. Specifically, at the 1927 International Congress of Telegraphy and Telephony, Hartley gave a presentation, entitled "Transmission of Information", in which he set out to quantify the capacity of a system to transmit information, the systems being those of telegraph, telephone, and television transmission systems, sending information in the form of either pulsations in radio waves or changes in current and correlative voltage level in wire telegraph lines.
External links
● Ralph Hartley – Wikipedia.
