Apple OS History
Updated: 05/21/2018 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 allows other computer companies to clone its computer by announcing its licensed the Macintosh operating system rights to Radius on January 4. |
| 1997 | Apple introduced macOS 8 in 1997. |
| 1997 | Apple buys NeXT Software Inc. for $400 million and acquires 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. |
| 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. |