I would be tempted to call it "The Killer App". By putting computers in the hand...

Hipponax on Oct 2, 2009 | parent | context | favorite | on: VisiCalc memories - the first Killer App

I would be tempted to call it "The Killer App". By putting computers in the hands of the people who hold the purse-strings VisiCalc made them business necessities in a way no other App has.