HISTORY :
Before 20’s the term software had not popularized, help desk software is being around for the long time in the industry even at that time people used typewriters, telephones, dictation machines , etc., were used for the customer support
Late in 1960’s call centers emerged in big companies for the efficient complaint solving, then after later on after 10 to 20 years outsourcing began within companies, with the deployment of the help desk, later on with world wide web, emails etc,