does a macbook air have an ethernet port
MacBook Air Apple incorporated several features in the design of the MacBook Air, such as the reduction of lead to make it more environmentally friendly. The MacBook Air contains no BFRs and PVC wiring, meets Energy Star 5.0 requirements, has a recyclable enclosure, and is rated EPEAT Gold. Its display is made from arsenic-free glass, and contains no mercury.[7][32] To reduce the computer's size and weight, several features were sacrificed. It was Apple's first notebook since the PowerBook 2400c without a built-in removable media drive.[33] It also omits a FireWire port, Ethernet port, line-in, media card slots (except the 13" 2010 through 2015 models, which have an SD card slot), and a Kensington Security Slot.[34]
macOS At macOS's core is a POSIX compliant operating system built on top of the XNU kernel, with standard Unix facilities available from the command line interface. Apple has released this family of software as a free and open source operating system named Darwin. On top of Darwin, Apple layered a number of components, including the Aqua interface and the Finder, to complete the GUI-based operating system which is macOS.[59]
Ethernet over twisted pair All these standards use 8P8C connectors,[b] and the cables from Cat 3 to Cat 8 have four pairs of wires; though 10BASE-T and 100BASE-TX only use two of the pairs.
MacBook Pro On June 11, 2012 at the Apple Worldwide Developers Conference in San Francisco, Apple introduced the third generation MacBook Pro, marketed as the "MacBook Pro with Retina display" to differentiate it from the predecessor model.[51] The new model includes Intel's third generation Core i7 processors (Ivy Bridge microarchitecture), USB 3.0, and a high-resolution 15.4" IPS 2880Ã—1800-pixel Retina Display.[52] Other new or changed features include a second Thunderbolt port, a HDMI port, and a thinner MagSafe port, dubbed the "MagSafe 2".[97] Apple introduced a 13-inch version on October 23, 2012 with specifications similar but slightly inferior to the 15-inch version's, such as less powerful processors.[98]
MacBook Air The MacBook Air is a line of Macintosh subnotebook computers developed and manufactured by Apple Inc. It consists of a full-size keyboard, a machined aluminum case, and a thin light structure. The Air is available with a screen size of (measured diagonally) 13.3in (33.782 cm), with different specifications produced by Apple. Since 2011, all MacBook Air models have used solid-state drive storage and Intel Core i5 or i7 CPUs.[2] A MacBook Air with an 11.6in (29.46 cm) screen was made available in 2010.[3]
macOS macOS can be updated using the Mac App Store application[153] or the softwareupdate command line utility. Until OS X 10.8 Mountain Lion, a separate Software Update application performed this functionality. In Mountain Lion and later, this was merged into the Mac App Store application, although the underlying update mechanism remains unchanged and is fundamentally different than the download mechanism used when purchasing an App Store application.