The History Of Microsoft Excel
In 1978, Harvard Business School student Dan Bricklin (the father of modern day spreadsheets) had to do some analysis task for his case study. To do this he had two alternatives: do it by hand or use a clumsy mainframe program. Bricklin throught there must be a better way. He envisioned “an electronic blackboard and electronic chalk in a classroom.” By the fall of 1978, Bricklin had programmed the first working prototype of his concept which he named VisiCalc. The first version of VisiCalc could manipulate a matric of five columns and 20 rows. It wasn’t even close to the modern day spreadsheets but still VisiCalc was an instant success.
Source: Excel Trick