This year marks the 35th anniversary of the introduction of the first spreadsheet, VisiCalc. Whether you love them or hate them, use them daily or only have a pedestrian interest in them, they have changed the way business is done and allowed people to have a better grasp on how their business is doing, or how it can do better.
Steven Levy wrote an article on spreadsheets in 1984, and he reprised it this year. It is a fascinating look into the world of personal computers in 1984, and you can see how they have changed our lives since then.
Enjoy a bit of history.