Spreadsheets and AI

[JohnT]

I consider Microsoft Excel the single greatest piece of commercial software ever, and #2 is not even close.

What is the greatest (most influential, whatever) computer program ever written?

Appreciate the responses, everyone. My nomination is spreadsheets - I can go with “Excel” or “Visicalc-Lotus-Excel” or whatever, but in terms of productivity, usefulness, variety of output, and more, it’s hard to beat Excel. However, TCP/IP and the *nix kernel are extremely strong contenders, as well as the C/COBOL/FORTRAN compilers mentioned. Does HTML count? Wait! I’m the OP - of course it counts! Baron Greenback, apparently I wasn’t |337 enough (or I forgot) - what did adding the s…