Ninth and last major release of the classic Mac OS
This article is about the ninth major release of the classic Mac OS. For version 10.9 of macOS (formerly OS X), see OS X Mavericks.
Mac OS 9
Version of the classic Mac OS operating system
Screenshot of Mac OS 9.0.4
Developer
Apple Computer
OS family
Macintosh
Working state
Historic, not supported
Source model
Closed source
Released to manufacturing
October 23, 1999; 24 years ago (October 23, 1999)[1][2][3]
Latest release
9.2.2 / December 5, 2001; 22 years ago (2001-12-05)[4]
Platforms
PowerPC
Kernel type
Nanokernel
Default user interface
Apple Platinum
License
Proprietary
Preceded by
Mac OS 8
Succeeded by
Mac OS X 10.0
Mac OS X Server 1.0
Official website
Apple - Products - Mac OS 9 at the Wayback Machine (archived November 9, 2000)
Tagline
Your Internet co-pilot.
Support status
Historical, unsupported as of February 1, 2002
Part of a series on
Classic Mac OS
Versions
System 1
System 2, 3, and 4
System 5
System 6
System 7
Mac OS 7
Mac OS 8
Mac OS 9
Applications
Calculator
Chooser
Drive Setup
DVD Player
Finder
Graphing Calculator
Keychain Access
PictureViewer
PowerTalk
QuickTime Player
Network Browser
Scrapbook
Sherlock
Software Update
Stickies
System Information
SimpleText
Developer
HyperCard
MacsBug
Macintosh Programmer's Workshop
ResEdit
Technology
Alias
Appearance Manager
Apple menu
At Ease
Balloon help
Bomb error
Command key (⌘)
Control Panel
Control Strip
Creator code
Dogcow
Extensions
Hierarchical File System
HFS Plus
Keychain
Labels
Macintosh File System
Macintosh Toolbox
Managers
MultiFinder
Option key (⌥)
OSType
PICT
QuickDraw
QuickTime
Resource fork
Sosumi sound
Startup sequence
System folder
System suitcase
Type code
WorldScript
Related
Memory management
Old World ROM
New World ROM
Software
v
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e
Mac OS 9 is the ninth and final major release of Apple's classic Mac OS operating system, which was succeeded by Mac OS X 10.0 in 2001, starting the Mac OS X family of operating systems. Introduced on October 23, 1999, it was promoted by Apple as "The Best Internet Operating System Ever",[5] highlighting Sherlock 2’s Internet search capabilities, integration with Apple's free online services known as iTools and improved Open Transport networking. While Mac OS 9 lacks protected memory and full pre-emptive multitasking,[6] lasting improvements include the introduction of an automated Software Update engine and support for multiple users.
Apple discontinued development of Mac OS 9 in late 2001, transitioning all future development to Mac OS X. The final updates to Mac OS 9 addressed compatibility issues with Mac OS X while running in the Classic Environment and compatibility with Carbon applications. At the 2002 Worldwide Developers Conference, Steve Jobs began his keynote address by staging a mock funeral for OS 9.[7]
^"October 23, 1999: Mac OS 9 Released". AppleMatters. Retrieved 2009-11-28.
^"October 23, 1999: Mac OS 9 Released [Archive] - Mac Forums". Retrieved 2009-11-28.
^"October 23, 1999: Mac OS 9 Released MacBytes.com". MacRumors.com. Retrieved 2009-11-28.
^https://support.apple.com/kb/DL1293?locale=en_US
^"October 23, 1999: Mac OS 9 Released". AppleMatters.com. Archived from the original on 2009-10-28. Retrieved 2009-11-28.
^"Re: newbie question: What is a Blue Task". Apple.com. Archived from the original on 2007-10-13. Retrieved 2007-03-29.
^"Apple WWDC 2002-The Death Of Mac OS 9". YouTube.com. Archived from the original on 2010-04-18. Retrieved 2010-03-16.
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