MacBook Air

The **MacBook Air** is a kind of Macintosh laptop computer designed by Apple, known as the "world's thinnest notebook." It is positioned as the most portable in Apple's MacBook family and was introduced at the Macworld Conference & Expo on January 15, 2008. The MacBook Air was the first laptop to implement Apple's precision aluminum unibody enclosure.  It was revised a third time in October 2010 when the outside container was redesigned. At this time Apple began selling another model with a smaller, 11.6-inch (29&nbsp;cm) screen until 2019. The fourth update was released in July 2011. There have been other revisions in between, but in October 2018, there was a fifth revision to the MacBook Air, with a fingerprint scanner, a larger Retina screen, and a backlit keyboard.

## Design 
The MacBook Air, made for thinness, weighs , was the first MacBook produced using a single piece of aluminum with Apple's unibody technique. The computer has a glossy LED backlit screen and a backlit keyboard, as well as a large trackpad that responds to iPhone-like Multi-Touch gestures such as pinching, swiping, and rotating.

A hatch that flips down on the right side shows the ports on MacBook Air: a USB port, a Mini DisplayPort, and a stereo earphone jack. The left side of the computer has a MagSafe adapter for power, and there is an iSight webcam and microphone above the screen. ArsTechnica found "moderate" performance improvements of the 64 GB solid-state drive of the first generation Air over the standard 80&nbsp;GB hard drive in tests. On October 14, 2008, new models were announced boasting improved capacities of 128&nbsp;GB (solid-state) and 120&nbsp;GB (hard drive). non-upgradable RAM. The CPU on the original Air was an Intel Core 2 Duo chip especially designed to be 40 percent the size of the standard Core 2 Duo chip. The current model has a low voltage, small form factor Core 2 Duo "Penryn" with 6&nbsp;MB of cache, running on a 1066&nbsp;MHz bus. MacBook Air has no user-replaceable parts. The hard drive, memory, and battery are enclosed within the casing, with memory soldered directly to the logicboard. MacBook Air's battery is enclosed within the case but can be replaced using normal screwdrivers, though it is unclear whether this process would void the notebook's warranty. As part of the out-of-warranty service, Apple offers to replace the battery for a fee.

Apple incorporated several features in the design of the MacBook Air, such as the reduction of  chemicals like lead, to make it more environmentally friendly. MacBook Air contains no BFRs and PVC wiring, meets Energy Star Version 5.0 requirements, has a recyclable enclosure, and is rated EPEAT Gold; its screen is made from arsenic-free glass and does not contain mercury. To reduce the computer's size and weight, several features were sacrificed. It is Apple's first notebook since the PowerBook 2400c without a built-in removable media drive. It also omits a FireWire port, Ethernet port, line-in, media card slots, and a Kensington Security Slot.

To regain the features of an optical drive, users can either use a separately-available external USB SuperDrive, or the bundled Remote Disc software to access the optical drive of another computer. However, this method only allows for disk browsing or software installation; DVD movies or CDs cannot be watched or listened to. The Remote Disc capability is achieved by the computer wirelessly accessing the optical drive of another Mac or Windows PC that has the Remote Disc program installed. It can also be used to reinstall the system software from the included installation DVD. Remote Disc supports netbooting, so MacBook Air can boot from its installation DVD in another computer's drive. This feature requires Remote Install Mac OS X to be running on the remote computer. The software does not allow the playback or information of DVDs or CDs, nor does it allow the installation of Microsoft Windows. Additionally, in the 2008 revision, the hard drive, graphics, front side bus, processor, memory, battery, and port connections were upgraded.

## Launch and reception 
 with a MacBook Air at the 2008 Keynote]]

The MacBook Air was greeted with mixed reception when it was introduced. The portability of the MacBook Air was praised in reviews, however, the compromise in features was criticized. The full-sized keyboard, weight of three pounds, thinness, and Multi-Touch trackpad were appreciated in reviews, while the limited configuration options, slow speed (in the non-SSD models), non-user replaceable battery, small hard drive, and price were criticized.

### "Thinnest" disputes 
The Mitsubishi Pedion, released in 1998, was the thinnest *rectangular* laptop at 0.72&nbsp;inches (1.84&nbsp;cm) until the release of the Dell Adamo in March 2009, which is a rectangular laptop 0.65&nbsp;inches (1.65&nbsp;cm) thick. Although both these laptops are thinner than MacBook Air's thickest point (0.76&nbsp;inches/1.94&nbsp;cm), MacBook Air *tapers* from 0.16–0.76&nbsp;inches (0.4–1.94&nbsp;cm), leading to some controversy over the "thinnest" laptop.

The Sharp Actius MM10 Muramasas, a thin, tapered notebook, had a minimum height (thickness) of  and a maximum height of . It was the thinnest tapered laptop until the release of MacBook Air in 2008. In March 2009, Dell challenged that claim with the release of the Dell Adamo XPS.

### Issues 
The flip-down hatch on the side of Mac Book Air is a tight fit for some headphone plugs and USB devices, requiring users to purchase an extension cable. Apple has removed the flip-down hatch on the Late 2010 model in favor of open connection ports as on other Mac books. Since the release of the first-generation product, some MacBook Air users have complained of overheating that caused CPU lockup. The effect can be seen at CPU temperatures as low as  and worsens with higher temperatures. Apple released a software update in early March 2008 to fix the problem with mixed results: the deactivation of 1 CPU core appears to have been corrected; however, the runaway kernel problem remains for at least some users. The problem is aggravated by system-intensive tasks such as video playback or video chatting.

## Specifications 
## Current lineup 
## Notes 
## References 
## Other websites
* Official website for MacBook Air
* MacBook Air at iFixit