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((Short description|Eighth major release of the classic Mac OS))
((About|the eighth major release of the classic Mac OS|version 10.8 of macOS (formerly OS X)|OS X Mountain Lion))
((more citations needed|date=September 2015))
((Use mdy dates|date=July 2015))
((Infobox OS version
| name = Mac OS 8
| family = [[Macintosh operating systems|Macintosh]]
| screenshot = Mac OS 8.1 emulated inside of SheepShaver.png
| caption = Screenshot of Mac OS 8.1
| developer = [[Apple Computer]]
| version of = [[Classic Mac OS]]
| source model = [[Closed source]]
| ui = [[Appearance Manager|Apple Platinum]]
| working state = Historic, unsupported
| first release date = ((Start date and age|1997|07|26))
| first release url = ((webarchive|url=https://web.archive.org/web/20090423083234/http://www.apple.com/ca/press/1997/08/MacOS8Sales.html|date=April 23, 2009|nolink=yes))
| release version = 8.6
| release date = ((Start date and age|1999|05|10))
| release url = https://archive.today/20130209071935/http://www.versiontracker.com/dyn/moreinfo/macos/359
| preceded by = [[System 7]]
| succeeded by = [[Mac OS 9]]
| supported platforms = [[PowerPC]], [[Motorola 68000 series|Motorola 68k series]] (until 8.5)
| kernel type = [[Monolithic kernel|Monolithic]] ([[Motorola 68000 series|68k]]),<br />[[nanokernel]] ([[PowerPC]])
| license = [[Proprietary software|Proprietary]]
| website = ((webarchive |url=https://web.archive.org/web/19990922040915/http://apple.com:80/macos/ |date=September 22, 1999 |title=Apple - Products - Mac OS 8.6|nolink=yes))
| tagline = Mac OS 8-8.1: A new look. A new feel. A dramatically new experience. Mac OS 8.5-8.6: Faster. Smarter. Far more clever.
| support status = Historical, unsupported as of May 2001
| Slogan = Click to Enter
))
((classic Mac OS sidebar))
'''Mac OS 8''' is the eighth major release of the [[classic Mac OS]] [[operating system]] for [[Mac (computer)|Macintosh]] computers, released by [[Apple Computer]] on July 26, 1997.<ref name="Mac OS 8 Sales">((Cite web |title=Apple Sells 1.2 Million Copies of Mac OS 8; Best Software Product Sales Ever in First Two Weeks of Availability |url=https://www.apple.com/ca/press/1997/08/MacOS8Sales.html |url-status=dead |archive-url=https://web.archive.org/web/20090423083234/http://www.apple.com/ca/press/1997/08/MacOS8Sales.html |archive-date=April 23, 2009 |access-date=October 1, 2017))</ref> It includes the largest overhaul of the classic Mac OS experience since the release of [[System 7 (Macintosh)|System 7]], approximately six years before. It places a greater emphasis on color than prior versions. Released over a series of updates, Mac OS 8 represents an incremental integration of many of the technologies which had been developed from 1988 to 1996 for Apple's overly ambitious OS named [[Copland (operating system)|Copland]]. Mac OS 8 helped modernize the Mac OS while Apple developed its next-generation operating system, [[macOS|Mac OS X]] (renamed in 2012 to OS X and then in 2016 to macOS).

Mac OS 8 is one of Apple's most commercially successful software releases, selling over 1.2 million copies in the first two weeks.<ref name="Mac OS 8 Sales" /><ref name="Cyberian Sales">((Cite web |title=Mac OS 8 Sales on Fire |url=http://news.cnet.com/Mac+OS+8+sales+on+fire/2100-1001_3-202222.html |url-status=dead |archive-url=https://archive.today/20120718024735/http://news.cnet.com/Mac-OS-8-sales-on-fire/2100-1001_3-202222.html |archive-date=July 18, 2012 |access-date=March 30, 2007))</ref> As it came at a difficult time in Apple's history, many [[Copyright infringement#"Piracy"|pirate]] groups refused to traffic in the new OS, encouraging people to buy it instead.<ref>((Cite news |date=August 8, 1997 |title=Where do you want to pirate today? |work=Forbes |url=https://www.forbes.com/1997/08/08/column.html |quote=In fact, the latest word out in the Macwarez scene is that pirates shouldn't copy Apple's OS 8—Mac's latest operating system—they should buy it, since Apple so desperately needs the money. |access-date=September 4, 2017 |archive-date=August 27, 2017 |archive-url=https://web.archive.org/web/20170827074855/https://www.forbes.com/1997/08/08/column.html |url-status=live ))</ref>

Mac OS 8.0 introduces the most visible changes in the lineup, including the [[Appearance Manager|Platinum]] interface and a native [[PowerPC]] [[Thread (computing)|multithreaded]] [[Finder (software)|Finder]]. Mac OS 8.1 introduces a new, more efficient [[file system]] named [[HFS Plus]]. Mac OS 8.5 is the first version of the Mac OS to require a [[PowerPC]] processor. It features PowerPC native versions of [[QuickDraw]], [[AppleScript]], and the [[Sherlock (software)|Sherlock]] search utility. Its successor, [[Mac OS 9]], was released on October 23, 1999.

==Copland==
((main|Copland (operating system)))

Starting in 1988, Apple's next-generation operating system, which it originally envisioned to be "System 8" was codenamed Copland. It was announced in March 1994 alongside the introduction of the first PowerPC Macs. Apple intended Copland as a fully modern system, including native PowerPC code, [[intelligent agent]]s, a [[microkernel]], a customizable interface named [[Appearance Manager]], a [[hardware abstraction layer]], and a [[relational database]] integrated into the Finder. Copland was to be followed by [[Copland (operating system)|Gershwin]], which promised [[memory protection]] spaces and full [[Preemption (computing)|preemptive multitasking]].<ref name="Copland">((Cite book |last=Linzmayer |first=Owen |title=Apple Confidential – "The Copland Crisis" |publisher=No Starch Press |year=1999 |pages=225–226))</ref> The system was intended to be a full rewrite of the Mac OS, and Apple hoped to beat Microsoft [[Windows 95]] to market with a development cycle of only one year.

The Copland development was hampered by many missed deadlines. The release date was first pushed back to the end of 1995, then to mid-1996, late 1996, and finally to the end of 1997. With a dedicated team of 500 software engineers and an annual budget of $250 million, Apple executives began to grow impatient with the project continually falling behind schedule. In August 1996, Apple [[chief technology officer]] [[Ellen Hancock]] froze development of Copland<ref>((Cite web |title=How Apple Took its NeXT Step |url=http://www.businessweek.com/archives/1997/b3509223.arc.htm |archive-url=https://archive.today/20120724143151/http://www.businessweek.com/archives/1997/b3509223.arc.htm |url-status=dead |archive-date=July 24, 2012 |quote=in August, newly hired chief technologist Ellen Hancock froze development altogether.))</ref> and Apple began a search for an operating system developed outside the company.<ref name="Copland" /> This ultimately led to Apple buying [[NeXT]] and developing [[Rhapsody (operating system)|Rhapsody]] which would eventually evolve into [[macOS|Mac OS X]] in 2001 (now named macOS).

At the [[Worldwide Developers Conference]] in January 1997, Apple [[chief executive officer]] (CEO) [[Gil Amelio]] announced that, rather than release Copland as one monolithic release, Copland features would be phased into the Mac OS following a six-month release cycle. These updates began with Mac OS 7.6, released during [[WWDC]]. Mac OS 8.0, released six months later, continued to integrate Copland technologies into the Mac OS.<ref name="Apple: The Inside Story">((Cite book |last=Carlton |first=Jim |title=Apple: The Inside Story of Intrigue, Egomania and Business Blunders |date=1999 |publisher=Random House Business Books |isbn=0099270730 |edition=2nd |location=London |oclc=925000937 |orig-year=1997))</ref>

==Mac OS 8.0==
Developed with the [[codename]] "Tempo", Mac OS 8.0 was announced on July 22, 1997,<ref>((Cite web |date=July 22, 1997 |title=Apple Introduces Mac OS 8--Most Significant Macintosh Operating System Release Since 1984 |url=http://product.info.apple.com/pr/press.releases/1997/q4/970722.pr.rel.macos8.html |url-status=dead |archive-url=https://web.archive.org/web/19990220040108/http://product.info.apple.com/pr/press.releases/1997/q4/970722.pr.rel.macos8.html |archive-date=February 20, 1999 |access-date=October 2, 2019 |publisher=Apple))</ref> and released on July 26. The early beta releases of the product which were circulated to developers and Apple internal audiences, were branded as Mac OS 7.7, superseding the then-current release, Mac OS 7.6. The software was renamed Mac OS 8 before final release.

Major changes in this version included the [[Appearance Manager|Platinum theme]], a Finder which was PowerPC-native and multithreaded, and greater customization of the [[user interface]].

Other features introduced in Mac OS 8.0 include the following:<ref name="Mac OS 8.0 Features">((Cite book |last=Pogue |first=David |url=https://archive.org/details/mac_Macworld_Mac_Secrets_5th_Edition_1999 |title=MacWorld Mac Secrets, 5th Edition |last2=Schorr |first2=Joseph |publisher=IDG |year=1999 |isbn=9780764540400 |pages=[https://archive.org/details/mac_Macworld_Mac_Secrets_5th_Edition_1999/page/n353 318]–319))</ref>

*Customization of system fonts and increased use of the user-set accent color.
*Pop-up [[context menu]]s, accessed via ctrl-click with a one-button mouse.
*Pop-up (or tabbed) windows in the Finder.
*Spring-loaded folders.
*Live scrolling.
*WindowShade widget in window titlebars.
*Multithreaded [[Finder (software)|Finder]] — file copy operations run in a separate thread and don't block the Finder UI.
*Redesigned color picker.
*Desktop Pictures control panel, allowing photographs to be set as the desktop background; not only tiled patterns.
*Simple Finder, an option which reduces Finder menus to basic operations, to avoid overwhelming new users.
*Relocation of the 'Help' menu from an icon at the right end of the menu bar to a standard textual menu positioned after the application's menus.
*A faster Apple Guide, featuring [[HTML]] help pages.
*Native support of [[Apple Filing Protocol]] over IP.
*Performance improvements to [[virtual memory]], AppleScript execution and system startup times.
*Faster desktop rebuilding.

==Mac OS 8.1==

Released on January 19, 1998, Mac OS 8.1 was the last version of the Mac OS to run on Macs with [[Motorola 68000 series]] processors. It addressed performance and reliability improvements. It introduced a new file system named [[HFS Plus|HFS+]], also named Mac OS Extended, which supported large file sizes and made more efficient use of larger hard drives via using a smaller block size. To upgrade, users must [[disk format|reformat]] the hard drive, which deletes the entire contents of the drive. Some third-party utilities later appeared that preserved the user's data while upgrading to HFS+. The 68040 systems do not support booting from HFS+ disks; the boot drive must be HFS.<ref>((Cite web |date=February 13, 2015 |title=LowEndMac |url=http://lowendmac.com/2015/quadra-and-centris-mac-index/ |access-date=February 18, 2015 |archive-date=February 18, 2015 |archive-url=https://web.archive.org/web/20150218231628/http://lowendmac.com/2015/quadra-and-centris-mac-index/ |url-status=live ))</ref>

Mac OS 8.1 was the first system to have a [[Universal Disk Format]] (UDF) driver,((efn|Read and write version support for UDF version 1.02 only. Some earlier versions of the operating system could support UDF via third-party utilities as far back as 7.5, along with additional UDF version support. Future versions of UDF were not officially supported until 8.6.)) allowing for [[DVD]] support on the Mac for the first time. It also shipped with the new [[Java (programming language)|Java]] runtime (JDK 1.1.3).

Mac OS 8.1 also included an enhanced version of [[PC Exchange]], allowing Macintosh users to see the long file names (up to 255 characters) on files that were created on PCs running [[Microsoft Windows]], and supporting [[File Allocation Table#FAT32|FAT32]].

Mac OS 8.1 is the earliest version of the Mac OS that can run [[Carbon (API)|Carbon]] applications. Carbon support requires a PowerPC processor and installation of the CarbonLib software from Apple's website; it is not a standard component of Mac OS 8.1. Applications needing later versions of CarbonLib will not run on Mac OS 8.1. More recent versions of CarbonLib require Mac OS 8.6.

As part of [[Internet Explorer for Mac|Apple's agreement with Microsoft]], 8.1 included [[Internet Explorer 3]] initially, but soon switched to [[Internet Explorer 4]] as its default browser.

Mac OS 8.1 was free for Mac OS 8 owners and was available in February 1998 via the apple.com website.

==Mac OS 8.5==
Released October 17, 1998, Mac OS 8.5 was the first version of the Mac OS to run solely on [[Mac (computer)|Macs]] equipped with a [[PowerPC]] processor. If Mac OS 8.5 is installed on a 68k system, the [[Sad Mac]] error screen will appear. As such, it replaced some, but not all, of the 680x0 code with [[PowerPC]] code, improving system performance by relying less on [[Mac 68k emulator|680x0 emulation]].

It introduced the [[Sherlock (software)|Sherlock]] search utility. This allowed users to search the contents of documents on hard drives (if the user had let it index the drive), or extend a search to the Internet. Sherlock plug-ins started appearing at this time; these allowed users to search the contents of other websites.

Mac OS 8.5 includes several performance improvements. Copying files over a network was faster than prior versions and Apple advertised it as being "faster than Windows NT".<ref name="Mac OS 8.5 Press Release">((Cite web |title=Apple Introduces Mac OS 8.5 - The Must-Have Upgrade |url=https://www.apple.com/ca/press/1998/10/MacOS85.html |access-date=May 10, 2011 |archive-date=April 23, 2009 |archive-url=https://web.archive.org/web/20090423123845/https://www.apple.com/ca/press/1998/10/MacOS85.html |url-status=live ))</ref> [[AppleScript]] was also rewritten to use only PowerPC code, which improved AppleScript execution speed significantly.

Font Smoothing, system-wide [[Font rasterization|antialiasing]] for type was also introduced. The [[HTML]] format for online help, first adopted by the Finder's Info Center in Mac OS 8, was now used throughout. This made it easier for software companies to write online help systems. The PPP control panel was removed and replaced with Remote Access, which provides the same functionality but also allows connections to [[AppleTalk Remote Access]] (ARA) servers.

The installation process was simplified considerably in Mac OS 8.5. In earlier versions the installer worked in segments and often required a user to click to continue in between stages of the installation. This was a holdover from the days when the OS was distributed on multiple floppy disks, [[disk swapping]] promoting a natural segmentation model. The Mac OS 8.5 installer generally required very little user interaction once it was started. Customisation options were also much more detailed yet simpler to manage.

From Mac OS 8.5 onward, MacLinkPlus document translation software is no longer bundled as part of the Mac OS.

Mac OS 8.5 was the first version of the Mac OS to support [[Appearance Manager|themes]], or skins, which could change the default Apple Platinum look of the Mac OS to "Gizmo" or "HiTech" themes. This radical changing of the computer's appearance was removed at the last minute, and appeared only in beta versions, though users could still make (and share) their own themes and use them with the OS. The Appearance control panel was also updated to support proportional scroll bars, and added the option for both scroll arrows to be placed at the bottom of a scroll bar.

Along with themes support, 8.5 was the first version to support [[32-bit]] [[icon (computing)|icons]]. Icons now had [[24-bit]] color (16.7 million colors) and an [[8-bit]] [[alpha channel]], allowing for transparency-translucency effects.

The ''application palette'' made its debut with 8.5 – the application menu at the right side of the menu bar could be resized to show the active application's name, or 'torn off' into a palette of buttons. This palette could be customized in many ways, by removing the window frame and changing the size and layout of the buttons. Apple provided no user interface to set these options, instead making them available via AppleScript and [[Apple Events]] and relying on third parties to provide a user interface for the task. By setting it to display horizontally and turning off the window border, the palette's look and function could be configured to resemble the [[Windows 95]] task bar.

===Mac OS 8.5.1===
Mac OS 8.5.1, released December 7, 1998, was a minor update to Mac OS 8.5 that fixes several bugs that caused crashes and data corruption.

==Mac OS 8.6==
Mac OS 8.6 was released on May 10, 1999 as a free update for Mac users running 8.5 and 8.5.1. It added support to the [[Mac OS nanokernel]] to handle preemptive tasks via the [[Multiprocessing Services]] 2.x and later developer API. Mac OS 8.6 improved PowerBook battery life, added Sherlock 2.1, and is faster and much more stable than either version of 8.5.x. It is the first version of Mac OS to display the version number as part of the startup screen. However, there is no process separation; the system still uses cooperative multitasking between processes, and even a process that is Multiprocessing Services-aware still has a portion that runs in the "blue task", which also runs all programs that are unaware of it, and was the only task that can run 68k code.

== Reception ==
While CNET's initial review of Mac OS 8 was more circumspect,<ref>((Cite web |title=Mac OS 8 has arrived |url=https://www.cnet.com/tech/tech-industry/mac-os-8-has-arrived/ |access-date=2023-02-06 |website=CNET |language=en |archive-date=October 12, 2022 |archive-url=https://web.archive.org/web/20221012233152/https://www.cnet.com/tech/tech-industry/mac-os-8-has-arrived/ |url-status=live ))</ref> its editorial staff named it one of the best products of 1997 in their year-end roundup.<ref>((Cite web |date=December 30, 1997 |title=Best of '97: CNET looks back at the year's top products |url=http://www.cnet.com/Content/Reviews/Special/Best97/ss07.html |url-status=dead |archive-url=https://web.archive.org/web/19990423133943/http://www.cnet.com:80/Content/Reviews/Special/Best97/ss07.html |archive-date=April 23, 1999 |access-date=February 6, 2023 |website=CNET))</ref>

==Versions==
{| class="wikitable" style="font-size: 85%; text-align: center;"

|- style="background: #ececec"
! style="width:8em" | Version
! style="width:10em" | Release date
! style="width:20em" | Changes
! style="width:20em" | Computer
! style="width:12em" | Codename
! style="width:10em" | Price

|-
| [https://developer.apple.com/library/archive/technotes/tn/tn1102.html 8.0]
| July 26, 1997
| Initial release
| Power Macintosh [[PowerPC G3|G3]]
| Tempo
| $99 US

|-
| [https://developer.apple.com/library/archive/technotes/tn/tn1121.html 8.1]
| January 19, 1998
[https://web.archive.org/web/20101204003221/http://docs.info.apple.com/article.html?artnum=30345 (download)]
| HFS+ file system
| iMac (Bondi Blue) Rev. A
| Bride of Buster
| Free update

|-
| [https://developer.apple.com/library/archive/technotes/tn/tn1142.html 8.5]
| October 17, 1998
| [[PowerPC]] required, Sherlock, Themes, 32-bit icons
| iMac (Bondi Blue) Rev. B
| Allegro
| $99 US

|-
| 8.5.1
| December 7, 1998
[https://web.archive.org/web/20030201224811/http://docs.info.apple.com/article.html?artnum=26165]
| Crash, memory leaks and data corruption fixes
| iMac (5 flavors)
| The Ric Ford (of [[Macintouch]]) Release
| rowspan="2"|Free update

|-
| [https://developer.apple.com/library/archive/technotes/tn/tn1163.html 8.6]
| May 10, 1999
[http://docs.info.apple.com/article.html?artnum=60283 (download)] ((Webarchive|url=https://web.archive.org/web/20101204003410/http://docs.info.apple.com/article.html?artnum=60283 |date=December 4, 2010 ))
| New [[nanokernel]] to support Multiprocessing Services 2.0, battery life improvement
| iBook
| Veronica

|}

==Compatibility==
{| border="1" cellpadding="1" cellspacing="0" style="font-size: 85%; border: gray solid 1px; border-collapse: collapse; text-align: center;" class="wikitable"

|-
! style="background: #ececec; width:220px"|Macintosh model
! style="background: #ececec" | 8.0<ref name="versionmatrix">((Cite web |title=Mac OS 8 and 9 compatibility with Macintosh computers |url=http://support.apple.com/kb/HT1835 |access-date=February 28, 2009 |publisher=[[Apple Inc.]] |archive-date=March 4, 2009 |archive-url=https://web.archive.org/web/20090304164253/http://support.apple.com/kb/HT1835 |url-status=live ))</ref>
! style="background: #ececec" | 8.1<ref name="versionmatrix" />
! style="background: #ececec" | 8.5<ref name="versionmatrix" />
! style="background: #ececec" | 8.6<ref name="versionmatrix" />

|-
! style="background: #ececec; text-align: left" | All [[Macintosh Centris|Centris]] / [[Macintosh Quadra|Quadra]] machines
| rowspan="5" colspan="2" ((yes))
| rowspan="5" colspan="2" ((no))

|-
! style="background: #ececec; text-align: left" | [[Macintosh LC 475]], [[Macintosh LC 575|575]], [[Macintosh LC 580|580]]

|-
! style="background: #ececec; text-align: left" | [[PowerBook]] 190

|-
! style="background: #ececec; text-align: left" | [[PowerBook]] 520

|-
! style="background: #ececec; text-align: left" | [[PowerBook]] 540

|-
! style="background: #ececec; text-align: left" | [[PowerBook Duo]] 2300
| rowspan="26" colspan="4" ((yes))

|-
! style="background: #ececec; text-align: left" | [[PowerBook]] 5300

|-
! style="background: #ececec; text-align: left" | [[PowerBook]] 1400

|-
! style="background: #ececec; text-align: left" | [[PowerBook]] 2400

|-
! style="background: #ececec; text-align: left" | [[PowerBook]] 3400

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 4400

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 5200

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 5300

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 5400

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 5500

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 6100

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 6200

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 6300

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 6400

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 6500

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 7100

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 7200

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 7300

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 7500

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 8100

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 8500

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 9500

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 7600

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 8600

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh]] 9600

|-
! style="background: #ececec; text-align: left" | [[Twentieth Anniversary Macintosh]]

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh G3]] All-In-One

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh G3]]
| ((yes)): machine-specific version only
| rowspan="2" colspan="3" ((yes))

|-
! style="background: #ececec; text-align: left" | [[PowerBook G3]]
| rowspan="10" ((no))

|-
! style="background: #ececec; text-align: left" | [[iMac G3]]
| ((yes)): machine-specific version only
| rowspan="2" colspan="2" ((yes))

|-
! style="background: #ececec; text-align: left" | [[iMac G3]] (266&nbsp;MHz, 333&nbsp;MHz)
| rowspan="6" ((no))

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh G3 (Blue & White)|Power Macintosh G3 Blue and White]]
| ((yes)): machine-specific version only
| ((yes))

|-
! style="background: #ececec; text-align: left" | [[iMac G3]] (Slot Loading)
| rowspan="4" ((no))
| rowspan="4" ((yes)): machine-specific version only

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh G4]] (PCI Graphics)

|-
! style="background: #ececec; text-align: left" | [[Power Macintosh G4]] (AGP Graphics)

|-
! style="background: #ececec; text-align: left" | [[iBook]]

|}

==See also==
* [[List of Apple operating systems]]
((Timeline of Macintosh operating systems))
==Notes==
((notelist))

==References==
((Reflist))

==External links==
*((webarchive|url=https://web.archive.org/web/20040222135829/http://developer.apple.com/technotes/tn/tn1102.html|date=February 22, 2004|title=Mac OS 8 - Technical Note TN1102)) from [[Apple Inc.|Apple]]
*((webarchive|url=https://web.archive.org/web/20040410161222/http://developer.apple.com/technotes/tn/tn1121.html|date=April 10, 2004|title=Mac OS 8.1 - Technical Note TN1121)) from [[Apple Inc.|Apple]]
*((webarchive|url=https://web.archive.org/web/20040821145809/http://developer.apple.com/technotes/tn/tn1142.html|date=August 21, 2004|title=Mac OS 8.5 - Technical Note TN1142)) from [[Apple Inc.|Apple]]
*((webarchive|url=https://web.archive.org/web/20040619184151/http://developer.apple.com/technotes/tn/tn1163.html|date=June 19, 2004|title=Mac OS 8.6 - Technical Note TN1163)) from [[Apple Inc.|Apple]]
*[https://web.archive.org/web/20090304164253/http://support.apple.com/kb/HT1835 Mac OS 8 Hardware Compatibility] at the Wayback Machine, from [[Apple Inc.|Apple]]

((S-start))	
((Succession box
 | title = Mac OS 8
 | years =1997
 | before = [[System 7|Mac OS 7]]
 | after = [[Mac OS 9]]
))
((S-end))

((Mac OS))
((Apple Inc. operating systems))
((Microkernel))
((Authority control))

[[Category:1997 software]]
[[Category:Classic Mac OS]]
[[Category:PowerPC operating systems]]
[[Category:Microkernel-based operating systems]]
[[Category:Microkernels]]

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