Software:Mac OS 9

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Short description: Ninth and last release of the Classic Mac OS system
Mac OS 9
A version of the classic Mac OS operating system
MacOS9.png
Mac OS 9.0.4 emulated inside of the SheepShaver emulator.png
Screenshot of Mac OS 9.0.4
DeveloperApple Computer
OS familyMacintosh
Working stateHistoric, not supported
Source modelClosed source
Released to
manufacturing		October 23, 1999; 24 years ago (October 23, 1999)
|Final release|Latest release}}9.2.2 / December 5, 2001; 22 years ago (2001-12-05)[1]
Kernel typeNanokernel
LicenseProprietary
Preceded byMac OS 8
Succeeded by
Support status
Historical, unsupported as of February 1, 2002
Part of a series on
Classic Mac OS
Macintosh 128k transparency.png
Versions
Applications
Developer
Technology
Related

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",[2] 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,[3] 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.[4]

Features

Apple billed Mac OS 9 as including "50 new features" and heavily marketed its Sherlock 2 software, which introduced a "channels" feature for searching different online resources and introduced a QuickTime-like metallic appearance. Mac OS 9 also featured integrated support for Apple's suite of Internet services known as iTools (later re-branded as .Mac, then MobileMe, which was replaced by iCloud) and included improved TCP/IP functionality with Open Transport 2.5.

Other features new to Mac OS 9 include:[5]

  • Integrated support for multiple user accounts without using At Ease.
  • Support for voice login through VoicePrint passwords.
  • Keychain, a feature allowing users to save passwords and textual data encrypted in protected keychains.
  • A Software Update control panel for automatic download and installation of Apple system software updates.
  • A redesigned Sound control panel and support for USB audio.
  • Speakable Items 2.0, also known as PlainTalk, featuring improved speech synthesis and recognition along with AppleScript integration.[6]
  • Improved font management through FontSync.
  • Remote Access Personal Server 3.5, including support for TCP/IP clients over Point-to-Point Protocol (PPP).
  • An updated version of AppleScript with support for TCP/IP.
  • Personal File Sharing over TCP/IP.
  • USB Printer Sharing, a control panel allowing certain USB printers to be shared across a TCP/IP network.
  • 128-bit file encryption in the Finder.
  • Support for files larger than 2 GB.
  • Unix volume support.
  • CD Burning in the Finder (introduced in Mac OS 9.1).
  • Addition of a "Window" menu to the Finder (introduced in Mac OS 9.1)

Mac OS 9 and the Classic Environment

PowerPC versions of Mac OS X prior to 10.5 include a compatibility layer (a shell) called Classic, enabling users to run applications and hardware requiring Mac OS 9 from within OS X. This is achieved through running Mac OS 9 without access to its Finder inside OS X. This requires Mac OS 9 to be installed on the computer even though most computers that can run the Classic environment are not necessarily able to boot into Mac OS 9 natively. Some Mac OS 9 applications do not run well in Classic. They demonstrate screen redraw problems and lagging performance. In addition, some drivers and other software which directly interact with the hardware fail to work properly.

In May 2002, at Apple's Worldwide Developers Conference in San Jose, California, Steve Jobs, accompanied by a coffin, held a mock funeral[4] to announce that Apple had stopped the development of Mac OS 9. The final version of Mac OS 9 and the "classic" Mac OS was Mac OS 9.2.2, released in December 2001.

In June 2005, Jobs announced that the Macintosh platform would be transitioning to Intel x86 microprocessors. Developer documentation of the Rosetta PowerPC emulation layer revealed that applications written for Mac OS 8 or 9 would not run on x86-based Macs. The Classic Environment remains in the PowerPC version of 10.4; however, x86 versions of OS X do not support the Classic environment.

Mac OS 9 can be emulated by using SheepShaver, a PowerPC emulator available on multiple operating systems, including Intel-based Macs. However, SheepShaver cannot run Mac OS versions newer than 9.0.4, as there is no support for a memory management unit. The PearPC PowerPC emulator does not support Mac OS 9.[7] QEMU has experimental support for running Mac OS 9 using PowerPC G4 emulation.[8]

The final Macs that were able to boot into Mac OS 9 natively without resorting to the Classic environment were the 867 MHz and 1 GHz "Antimony" Titanium PowerBook G4 released in November 2002 and the 1 GHz and 1.25 GHz "Mirrored Drive Doors" Power Mac G4 released in August 2002 (which was re-released in June 2003 due to a perceived demand for Mac OS 9 machines). These machines were released around the time when Mac OS 9 was still offered on some Macs up until 2004, even though development had stopped in late 2001.

Both the "Antimony" Titanium PowerBook G4 and the "Mirrored Drive Doors" Power Mac G4 came preinstalled with both Mac OS 9 and Mac OS X in a dual-boot configuration (with Mac OS X being selected by default). The "Antimony" Titanium PowerBook G4 was the last PowerBook model able to run Mac OS 9 natively, whereas the "Mirrored Drive Doors" Power Mac G4 was one of the last Mac models overall to officially boot into Mac OS 9. While these final models of the Macs and PowerBooks have G4 processors with faster clock speeds up to 1 GHz and 1.25 GHz respectively, they were able to boot into Mac OS 9 natively without any issues.

The majority of G4 Macs released in 2003 that have a 1 GHz and higher processor never had their "Mac OS ROM" boot files updated to allow those Macs to natively boot into Mac OS 9 outside of the Classic environment. All G5 Macs will not boot Mac OS 9 at all because there was no support for G5 processors on Mac OS 9 (Mac OS 9 only supported G3 and G4 processors as of Mac OS 9.2.2). Therefore, those Macs can only run Mac OS 9 under the Classic environment or other software.

In recent years, unofficial patches for Mac OS 9 and the "Mac OS ROM" have been made to allow unsupported G4 Macs to boot into Mac OS 9; however this is not officially supported by Apple.[9]

Other uses

Aside from Apple-branded hardware that is still maintained and operated, Mac OS 9 can be operated in other environments such as Windows and Unix.[10] For example, the aforementioned SheepShaver software was initially not designed for use on x86 platforms and required an actual PowerPC processor present in the machine it was running on similar to a hypervisor. Although it provides PowerPC processor support, it can only run up to Mac OS 9.0.4 because it does not emulate a memory management unit.

Version history

Version Release date Changes Codename Computer Price
9.0 October 23, 1999
  • Initial release
 Sonata iMac G3 99 USD
9.0.2 February 2000

(Shipped with Macs)

  • Bug fixes
 N/A PowerBook (FireWire) Only shipped with referred Macs
9.0.3 March 2000

(Shipped with Macs)

iMac/iMac DV/iMac DV SE
9.0.4 April 4, 2000
  • Improved USB and FireWire support
  • Other bug fixes
 Minuet iMac G3 (slot loading) Free Update
9.1 January 9, 2001
  • Integrated Disc Burning within Finder
  • Implementation of Finder 'Window' menu
  • Memory management unit required
  • Improved stability
 Fortissimo iBook 14 inch and 12 inch
9.2 June 18, 2001

(Shipped with Macs)

  • G3 processor as minimum system requirement
  • Improved speed
  • Improved Classic Environment support
 Moonlight Power Mac G4 (QuickSilver) Only shipped with referred Macs
9.2.1 August 21, 2001
  • Minor bug fixes
 Limelight iBook (Late 2001), PowerBook G4 (Gigabit Ethernet) Free Update
9.2.2 December 5, 2001
  • Bug fixes relating to Classic Environment
 LU1 eMac

Updates to Mac OS 9 include 9.0.4, 9.1, 9.2.1, and 9.2.2. Mac OS 9.0.4 was a collection of bug fixes primarily relating to USB and FireWire support. Mac OS 9.1 included integrated CD burning support in the Macintosh Finder and added a new Window menu in the Finder for switching between open windows. Mac OS 9.2 increased performance noticeably and improved Classic Environment support.

Compatibility

Macintosh Model 9.0[11] 9.1[11] 9.2.1[11] 9.2.2[11]
Power Macintosh 6100 Yes Yes: Must install from CD No
Power Macintosh 7100
Power Macintosh 8100
PowerBook 2300 Yes
PowerBook 2400c[C]
PowerBook 5300
PowerBook 1400[C] Partial: Password Security unsupported
PowerBook 3400[C] Yes: Hard disk driver must not be updated
Power Macintosh 5200 LC Yes
Power Macintosh 5300 LC
Power Macintosh 5500[C]
Power Macintosh 4400
Power Macintosh 6200[C]
Power Macintosh 6300[C]
Power Macintosh 6400[C]
Power Macintosh 6500[C]
Power Macintosh 7200[C]
Power Macintosh 7300[C]
Power Macintosh 7500[C]
Power Macintosh 8500[C]
Power Macintosh 7600[C]
Power Macintosh 8600[C]
Power Macintosh 9600[C]
Twentieth Anniversary Macintosh[C]
PowerBook G3
PowerBook G3 Series Yes Yes
PowerBook (FireWire) Yes: Machine-specific version only
PowerBook G4[A] No Yes: Machine-specific version only
PowerBook G4 (Gigabit Ethernet)[A] No Yes: Machine-specific version only
PowerBook G4 (DVI)[A] No Yes: Machine-specific version only
PowerBook G4 (1 GHz/867 MHz)[A]
PowerBook G4 (12-inch)[B] Partial: Classic Environment only
PowerBook G4 (17-inch)[B]
PowerBook G4 (12-inch DVI)[B]
PowerBook G4 (12-inch 1.33 GHz)[B]
PowerBook G4 (12-inch 1.5 GHz)[B]
PowerBook G4 (15-inch FW 800)[B]
PowerBook G4 (15-inch 1.5/1.33 GHz)[B]
PowerBook G4 (17-inch 1.33 GHz)[B]
PowerBook G4 (17-inch 1.5 GHz)[B]
iBook Yes Yes Yes Yes
iBook (FireWire) Yes: Machine-specific version only
iBook (Dual USB)[A] No Yes: Machine-specific version only
iBook (Late 2001)[A]
iBook (14.1 LCD)[A] No Partial: Classic Environment only
iBook (16 VRAM)[A]
iBook (Opaque 16 VRAM)[A]
iBook (32 VRAM)[A]
iBook (14.1 LCD 32 VRAM)[A]
iBook (Early 2003)[A] Yes: Machine-specific version only
iBook G4[B] Partial: Classic Environment only
iBook G4 (14-inch)[B]
iBook G4 (Early 2004)[B]
Power Macintosh G3 All-In-One Yes
Power Macintosh G3
Power Macintosh G3 (Blue and White)
iMac G3
iMac G3 (266 MHz, 333 MHz)
iMac G3 (Slot Loading)
iMac G3 (Summer 2000) Yes: Machine-specific version only Yes Yes
iMac G3 (Early 2001)[A] No Yes: Machine-specific version only
iMac G3 (Summer 2001)[A]
iMac G4[A] No Yes
iMac G4 (February 2003)[B] Partial: Classic Environment only
iMac G4 (17-inch 1 GHz)[B]
iMac G4 (USB 2.0)[B]
iMac G5[B]
iMac G5 (Ambient Light Sensor)[B]
iMac G5 (iSight)[B]
eMac[A] Yes
eMac (ATI Graphics CD-ROM drive)[A] Yes: Machine-specific version only
eMac (ATI Graphics Combo drive)[A]
eMac (ATI Graphics SuperDrive)[B] Partial: Classic Environment only
eMac (USB 2.0)[B]
eMac (2005)[B]
Power Mac G4 (PCI Graphics) Yes Yes
Power Mac G4 (AGP Graphics)
Power Mac G4 (Gigabit Ethernet) Yes: Machine-specific version only
Power Mac G4 Cube
Power Mac G4 (Digital Audio)[A] No Yes: Machine-specific version only Yes
Power Mac G4 (QuickSilver)[A] No
Power Mac G4 (QuickSilver 2002)[A] No Yes: Machine-specific version only
Power Mac G4 (Mirrored Drive Doors)[A]
Power Mac G4 (FW 800)[B] Partial: Classic Environment only
Power Mac G4 (Mirrored Drive Doors 2003)[A] Yes: Machine-specific version only
Power Mac G5 Partial: Classic Environment only
Power Mac G5 (June 2004)
Power Mac G5 (Late 2004)
Power Mac G5 (Early 2005)
Power Mac G5 (Late 2005)
Mac Mini (G4)[B]
  1. 1Some newest G3 and most G4 Macs can only run at least Mac OS 9.1, and some only run at least Mac OS 9.2. This is because the late development of G3 Macs and the mid-development of G4 Macs was during the development of Mac OS 9 and only the versions the G4 Macs support were designed to be compatible with those G4 Macs.
  2. 1Some newest G4 and all G5 Macs can only run at least Mac OS 9.2, and can only run its compatible versions of Mac OS 9 in OS X's Classic Environment because the "Mac OS ROM" was never updated to allow those Macs, which were developed during the OS X era, to directly boot it (but probably continued to run in userspace, with the restriction that it would only run at least Mac OS 9.2, so it was still supported in the Classic Environment).
  3. 1Although Mac OS 9.2 to 9.2.2 officially requires a G3 processor, certain second generation Power Macs can be made to run it using the tool "OS9 Helper", allowing for such benefits like support for ATI's latest classic Mac OS drivers, full iPod compatibility, and the ability to run DVD Studio Pro 1.5 or 1.2.1 and Final Cut Pro 3, among other things.[12][13]

See also

References

  1. ↑ https://support.apple.com/kb/DL1293?locale=en_US
  2. ↑ "October 23, 1999: Mac OS 9 Released". AppleMatters.com. http://www.applematters.com/article/october-23-1999-mac-os-9-released/. 
  3. ↑ "Re: newbie question: What is a Blue Task". Apple.com. http://lists.apple.com/archives/Mt-smp/2001/May/msg00007.html. 
  4. ↑ 4.0 4.1 "Apple WWDC 2002-The Death Of Mac OS 9". YouTube.com. https://www.youtube.com/watch?v=Cl7xQ8i3fc0. 
  5. ↑ "MacHelp What's New in Mac OS 9". Apple.com. http://docs.info.apple.com/article.html?artnum=50100. 
  6. ↑ "Mac OS 9: What's New - Speakable Items". Apple.com. http://docs.info.apple.com/article.html?artnum=60519. 
  7. ↑ "Frequently Asked Questions". PearPC Developers. http://pearpc.sourceforge.net/faq.html. 
  8. ↑ "Emulate Mac OS 9 With QEMU" (in en). 2018-11-07. https://www.jamesbadger.ca/2018/11/07/emulate-mac-os-9-with-qemu/. 
  9. ↑ "Mac OS 9 booting on: Previously Unspported G4 Models (Summary "Current state")". http://macos9lives.com/smforum/index.php/topic,4366.0.html. 
  10. ↑ "E-Maculation wiki". http://www.emaculation.com/doku.php/mac_emulation. 
  11. ↑ 11.0 11.1 11.2 11.3 "Mac OS 8 and 9 compatibility with Macintosh computers". Apple Inc.. http://support.apple.com/kb/HT1835. 
  12. ↑ "Other World Computing: OS 9 Forever". https://eshop.macsales.com/OSXCenter/OS9Helper/Framework.cfm?topic=32. 
  13. ↑ OS 9 Forever Compatibility

External links

  • from apple.com
  • from apple.com
  • from apple.com
Preceded by
Mac OS 8 		Mac OS 9
1999 		Succeeded by
Mac OS X 10.0 (Cheetah)



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