An original Apple computer, now known as the Apple-1, is shown at a press preview at the Computer History Museum in Mountain View, Calif, June 24, 2013. The Apple-1 was designed and hand-built in 1976 by Apple co-founder Steve Wozniak, and will go on the auction block at Christie's. The bidding starts at $300,000, and the price is expected to reach $500,000. The final result will be announced on July 9 after the end of the auction. [Photo/CFP]