If you want to get technical, the MacBook Air is .68 inches (1.73 cm) at its thickest point and .11 (2.79 mm) at its thinnest.

The MacBook Air is a notebook computer, since it has a full keyboard, display and mouse. The iPad, on the other hand, is a tablet.

In 2010, Apple stopped offering hard disk drive storage on the MacBook Air, opting for a solid state flash storage drive. That's great because solid state storage is faster, quieter and more reliable than hard disk storage.

The light sensor adjusts the screen and keyboard brightness based on lighting conditions, making them easier to see. Now that's a computer that's looking out for you!

Even though the MacBook Air doesn't have a built-in CD/DVD drive, you can get a SuperDrive to read and write CDs and DVDs. So there's no reason you can't drag out your old music and get nostalgic for a while.

To emphasize just how thin its new notebook computer was, Apple's first MacBook Air commercials showed a hand removing the computer from a yellow interoffice mail envelope.

All MacBook Air models come preloaded with iLife, which includes iPhoto, iMovie and Garage Band. Those alone are worth hours of entertainment!

Starting at around $999, the MacBook Air is Apple's low-end laptop. But just because it's the most affordable laptop doesn't mean it isn't powerful.

Apple introduced the MacBook Air to the world in January of 2008.

The MacBook Air sports a backlit, high-resolution LED display.

While the MacBook Air eventually replaced the MacBook in 2011, Apple continued to produce both models for several years. The MacBook Air was not originally marketed as the MacBook's replacement.

All of Apple's computers use the same Mac operating system, so you know you're getting the best Apple has to offer.

The MacBook Air has an aluminum body, making it both durable and lightweight. It looks pretty, too.

Even though the MacBook Air lacks a CD/DVD drive, you can purchase an external one if you need it.

Apple's Time Capsule allows you to automatically back up your computer's files wirelessly. Talk about peace of mind!

The MacBook Air comes with iLife, which includes iPhoto, iMovie and Garage Band.

The 11-inch MacBook Air weighs 2.38 pounds (1.1 kg) and the 13-inch model weighs 2.96 pounds (1.3 kg). No matter which version you have, the last thing you'll need to worry about is lugging around a heavy computer.

According to Apple's Jan. 15, 2008 press release, Steve Jobs declared the MacBook Air to be the world's thinnest notebook computer.

The MacBook Air comes in two sizes -- 13 inches (33 cm) and 11 inches (27.9 cm).

Unlike the MacBook Pro, which is marketed to professionals, the MacBook Air is a computer designed for the everyday user.