https://qz.com/1103867/visicalc-and-apple-aapl-steve-jobs-said-that-the-spreadsheet-was-key-to-apples-early-success/

These days, Apple’s marketing campaigns play up the company’s appeal to cool, creative people. Things were different in the early days of the now dominant computer and device maker.

The $800 billion market cap behemoth we know today owes much of its initial success to the humble spreadsheet. More specifically, a key selling point of the Apple II, the company’s first machine aimed at a mass audience, was VisiCalc, the first electronic spreadsheet program.