Today in Apple history: Apple’s war with IBM commences

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IBM PC 5150: The IBM Personal Computer
This unassuming IBM Personal Computer started the Apple-versus-PC feud.
Photo: Boffy B/Wikipedia CC

August 12: Today in Apple history: Apple's war with IBM commences with IBM Personal Computer launch August 12, 1981: The launch of the IBM Personal Computer ignites a long-running Apple-versus-PC rivalry.

Secure in the Apple II’s technical superiority over the new PC, Apple welcomes International Business Machines to the personal computing party in a full-page ad in the pages of The Wall Street Journal. Things won’t stay positive for long.

Today in Apple history: Apple II gets its first ‘killer app’

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VisiCalc, the world's first
The world's first computer spreadsheet.
Photo: Steven Weyhrich/Apple2History

January 2: Today in Apple history: With VisiCalc, the Apple II gets its first killer app January 2, 1979: Entrepreneurs Dan Bricklin and Bob Frankston incorporate their company Software Arts to publish a little program called VisiCalc.

The first spreadsheet for the Apple II, the $100 VisiCalc becomes personal computing’s first “killer app.” It helps transform personal computers from “cool to have” toys into “must have” business accessories.