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 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.