Comment LANPAR (Score 4, Informative) 41
In 1969, we had to develop the world's true first electronic spreadsheet (LANPAR) within the limitation of 32k of memory - and we included forward referencing which didn't appear in Visicalc, TKSolver, Supercalc or even Multiplan I. Only in Lotus 13 years later. We even included the ability for sophisticated logic calculations, access to external data base data, and input of data in real time. Timesharing in those days was very similar to "cloud" computing now, except that you knew exactly which remote computer was doing the processing.