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They'd been working/programming a decade! "By the time we created VisiCalc Dan and I had been working professional and academically for well over a decade."

also I found this interesting. "The Apple's screen was 40 columns and 25 rows. "

That's 1,000 cells. And now a modern Google Sheets starts with 26 columns and 1,000 rows. 26,000 cells. But also can go up to 10,000,000 cells!




"I started to program VisiCalc in November 1978 and we shipped the first production copy in October 1979."

Just one year.

"In November of 1978 I started to prototype VisiCalc. We eventually shipped that prototype."

Some things never change :)


The 40 by 25 are characters, not cells :)

See: http://www.bricklin.com/history/refcard5.htm




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