How did the game industry evolve from coin operated electromechanical and mainframe computer games of the '60s to today's console, personal computer, online and mobile industries?

The first arcade was built in 1971 and after a while parents saw it as a monny drain and complained to the right people. atarie was also trying to make a console to keep up with the in home computer and TV. now people dont want to keep games around for either lazyness or for fear of loseing there games.