A piece of computer history and coveted collector's item with ties to Southern California fetched six figures at auction this week. An Apple-1 computer, hand-built by Steve Wozniak and Steve Jobs in the 1970s, sold for $500,000 at auction Tuesday in Monrovia. The final bid for the unit was $400,000, with the buyer -- who wishes to remain anonymous -- paying an additional $100,000 premium, or commission, to John Moran Auctioneers. The Southern California-based auction house estimated that the unit, dubbed the "Chaffey College Apple-1" after its original owner was identified as a Chaffey professor, would sell for between $400,000 to $600,000. In 2014, Bonhams auction house sold an Apple-1 for more than $900,000.

Apple's new-model, top-of-the-line MacBook Pro laptop computer could set you back nearly $4,000 before taxes. But that will seem like a Black Friday steal when a 45-year-old Apple computer goes on sale this week in Monrovia, where it may fetch six figures or more. On Tuesday, John Moran Auctioneers will auction off a functioning Apple-1 computer hand-built by Steve Wozniak, Steve Jobs and others in a Los Altos, Calif., garage in 1976. The system was the rock upon which the trillion-dollar Apple empire was built. In his 2011 biography "Steve Jobs," Walter Isaacson quotes Wozniak as saying of the Apple-1: "We were participating in the biggest revolution that had ever happened, I thought. I was so happy to be a part of it."

Apple's new-model, top-of-the-line MacBook Pro laptop computer could set you back nearly $4,000 before taxes. But that will seem like a Black Friday steal when a 45-year-old Apple computer goes on sale this week in Monrovia, where it may fetch six figures or more, even without a 16-inch, high-definition screen and the latest microprocessors. On Tuesday, John Moran Auctioneers will auction off a functioning Apple-1 computer hand-built by Steve Wozniak, Steve Jobs and others in a Los Altos, Calif., garage in 1976. The system was the rock upon which the trillion-dollar Apple empire was built. In his 2011 biography "Steve Jobs," Walter Isaacson quotes Wozniak as saying of the Apple-1: "We were participating in the biggest revolution that had ever happened, I thought. I was so happy to be a part of it."

Shares of AeroVironment Inc., a drone manufacturer based in Monrovia, soared Wednesday after the company reported strong second-quarter earnings, boosted by a growth in sales of unmanned aircraft systems.