Apple OS history

Updated: 11/30/2020 by Computer Hope
Year Event
1978 In June 1978, Apple introduced Apple DOS 3.1, the first operating system for the Apple computers.
1984 Apple introduced System 1 in 1984.
1985 Apple introduced System 2 in 1985.
1986 Apple introduced System 3 in 1986.
1987 Apple introduced System 4 in 1987.
1988 Apple introduced System 6 in 1988.
1991 Apple introduced System 7 operating system on May 13, 1991.
1995 Apple allowed other computer companies to clone its computer by announcing it licensed the Macintosh operating system rights to Radius on January 4.
1997 Apple introduced macOS 8 in 1997.
1997 Apple bought NeXT Software Inc. for $400 million and acquired Steve Jobs, Apple co-founder, as a consultant.
1999 Apple introduced macOS 9 in 1999.
1999 Apple released macOS X Server 1.0 on March 16, 1999.
2001 Apple introduced macOS X 10.0, code-named Cheetah, and became available on March 24, 2001.
2001 Apple introduced macOS X 10.1, code-named Puma, and became available on September 25, 2001.
2002 Apple introduced macOS X 10.2, code-named Jaguar, and became available on August 23, 2002.
2003 Apple introduced macOS X 10.3, code-named Panther, on October 25, 2003.
2004 Apple introduced macOS X 10.4, code-named Tiger, at the WWDC on June 28, 2004.
2007 Apple introduced macOS X 10.5, code-named Leopard, on October 26, 2007.
2008 Apple introduced MobileMe at the WWDC on June 9, 2008.
2009 Apple introduced macOS X 10.6, code-named Snow Leopard, at the WWDC on June 8, 2009.
2010 Apple introduced macOS X 10.7, code-named Lion, at the "Back to the Mac" event on October 20, 2010. The operating system was later released on July 20, 2011. New features included AirDrop, Gatekeeper, and many more.
2012 Apple released macOS X 10.8, code-named Mountain Lion, on July 25, 2012.
2013 Apple introduced macOS X 10.9, code-named Mavericks, at the WWDC on June 10, 2013.
2014 Apple introduced macOS X 10.10, code-named Yosemite, at the WWDC on June 2, 2014. Yosemite was later released on October 16, 2014.
2014 Apple introduced Force Touch, a haptic feedback system for macOS. Simultaneously, they launch a similar feedback system for iOS called 3D Touch.
2015 Apple introduced macOS X 10.11, code-named El Capitan, at the WWDC on June 8, 2015.
2016 Apple introduced macOS X 10.12, code-named Sierra, at the WWDC on June 13, 2016.
2017 Apple introduced macOS X 10.13, code-named High Sierra, at the WWDC on June 5, 2017.
2018 Apple introduced macOS X 10.14, code-named Mojave, at the WWDC on June 4, 2018.
2018 Apple introduced Dark Mode in macOS X 10.14 (Mojave), a feature that turns the background to black and text to white. Dark Mode is easier on users' eyes at night, reducing eye strain.
2019 Apple introduced macOS X 10.15, code-named Catalina, at the WWDC on June 3, 2019.

Computer History