Whatever existed prior to VisiCalc, was not similar to the spreadsheet as we know it and define it today. It's a path that VisiCalc blazed, to universal credit by everyone that was in the industry at the time and helped pioneer software.
Whatever existed prior to VisiCalc, was not similar to the spreadsheet as we know it and define it today. It's a path that VisiCalc blazed, to universal credit by everyone that was in the industry at the time and helped pioneer software.
It wasn't the visual paradigm of a tabular presentation. It wasn't the two-formed concept of cells having both values and formulas, or that the formulas could be stated in terms of other cell's values.
It wasn't that you could do what accountants had done for centuries using the same tools. It wasn't that the same type of calculations could be done using a computer.
So what we're left is that he took a visual concept and implemented it on a screen. I don't think that qualifies as "invention", myself. It is re-implementation, copying, or something that doesn't involve a conceptual leap.
He was in the right place at the right time to spot the technological opportunity, and we are all better for that.