After a 28-minute-long bidding war, a fully functional “Hatfield” Apple-1 computer sold at Bonhams for $1.15 million on Oct. 14, setting a new world auction record.

After a 28-minute-long bidding war, a fully functional “Hatfield” Apple-1 computer sold at Bonhams for $1.15 million on Oct. 14, setting a new world auction record for commercially released Apple-1 computers, the institution said in a recent news release.

The primitive personal computer, which was created by engineer Steve Wozniak in 1976, includes a signed letter from Steve Jobs, the original operations manual and a typed invitation to the “Apple I Owners Club,” as well as several hardware components. Perhaps most importantly, Wozniak’s signature is on the motherboard, which still operates 50........

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