Mark P. McCahill

Mark P. McCahill (Mark Perry McCahill)
Born	(1956-02-07) February 7, 1956 (age 68)
Nationality	American
Occupation	Programmer/systems architect
Employers	University of Minnesota Duke University
Known for	Inventing the Gopher protocol, the predecessor of the World Wide Web; developing and popularizing a number of other Internet technologies

Mark Perry McCahill (born February 7, 1956) is an American computer scientist and Internet pioneer. He has developed and popularized a number of Internet technologies since the late 1980s, including the Gopher protocol, Uniform Resource Locators (URLs), and POPmail.