The predecessor of this was created in London and was called St. James Computer Dating Service (later to become Com-Pat), started by Joan Ball in 1964.
[2] Users filled out a 75-point paper questionnaire, covering hobbies, education, physical appearance, race and attitudes towards sex, that could then be mailed with a $3 fee.
[1][3] The questionnaires were transferred to punched cards[4] and processed on an IBM 7090 computer at the Avco service bureau in Wilmington, Massachusetts.
[5] A week or two later, the user received an IBM 1401 print out in the mail listing the names and telephone numbers of five potential matches.
[5] Tarr, Crump and Ginsburg formed a company named Compatibility Research, Inc. and rolled out the service in several cities.