Ethernet

Ethernet is a family of ing technologies for s (LANs) commercially introduced in 1980. Standardized in , Ethernet has largely replaced competing wired LAN technologies.
Systems communicating over Ethernet divide a stream of data into individual packets called frames. Each frame contains source and destination addresses and error-checking data so that damaged data can be detected and re-transmitted.
The standards define several wiring and signaling variants. The original Ethernet used coaxial cable as a . Later the coaxial cables were replaced by and links in conjunction with s or es. Data rates were periodically increased from the original 10 megabits per second, to 100 gigabits per second.
Since its commercial release, Ethernet has retained a good degree of compatibility. Features such as the 48-bit and format have influenced other networking protocols.
==Mac support for Ethernet==
===Hardware===
The first Macintosh models with a built-in Ethernet support were the Macintosh Quadra 700 and 900. Both were released in October 1991 with a custom AAUI port that required an external Ethernet dongle.Apple’s AAUI Ethernet Connector by Daniel Knight, Low End Mac. 2007-09-04. With the adoption and increased speed of AirPort and IEEE 802.11 Wi-Fi standards, the MacBook Air was released in 2008 without a built-in Ethernet port; the MacBook Pro followed suit in 2012 to accommodate thinner designs.Why does Apple's MacBook Pro lack an Ethernet port?, Quora. Accessed 2021-04-09.
===Protocols===
Apple Computer's early support of Ethernet came through EtherTalk in which AppleTalk s were encapsulated within Ethernet packets. In Mac OS 8, AppleShare began migrating to packets over Ethernet.A history of Macintosh Networking by Alan B. Oppenheimer, Open Door Networks. 2004-01. Archived 2006-10-16. The AppleTalk Filing Protocol in classic Mac OS became the Apple Filing Protocol (AFP) in Mac OS X. AFP was deprecated in OS X 10.9 "Mavericks" and removed in macOS Big Sur in favor of other networking protocols, such as (SMB), (NFS), (FTP), and .Classic Mac Networking, The Apple Fool.
==References==
==External links==
*Connect your Mac to the internet using Ethernet at Apple Support
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* at Wikipedia
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Category:IEEE standards
Category:Networking
Category:Terms