A MacBook is a type of laptop computer made by Apple Inc. It runs Mac OS X and comes with a built in webcam and microphone and a power adapter that is attached by magnets. MacBooks are currently available housed in white and black plastic.
The first MacBook white came out on October 18, 2009. It now has the same "unibody" construction as the MacBook Pros.
Apple upgrades, or makes the MacBook better, about every six months, or half a year. This makes them faster and more reliable.
In October 2008, Apple decided to make a MacBook housed in aluminum. It was pretty much the same as the one housed in plastic except that it was a little better and that it was housed in metal. In June 2009, during WWDC (Apple's big yearly gathering), this laptop was renamed the MacBook Pro 13 inch.
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