Editing Mac OS X 10.0 (section)

{{Short description|First major release of Mac OS X}}
{{Use mdy dates|date=October 2013}}
{{Infobox OS version
| name = Mac OS X 10.0
| version of = [[macOS]]
| logo = MacOS10.1.png
| logo size = 64px
| screenshot = MacOSX10-0screenshot.png
| developer = [[Apple Computer]]
| family = {{flat list|
* [[Macintosh operating systems|Macintosh]]
* [[Unix-like]]
}}
| source_model = [[Closed source|Closed]], with [[open-source software|open source]] components
| license = [[Apple Public Source License]] (APSL) and Apple [[end-user license agreement]] (EULA)
| kernel_type = [[Hybrid kernel|Hybrid]] ([[XNU]])
| supported_platforms = [[PowerPC]]<!--Only official platforms are listed, not what they played around with and never released-->
| ui = [[Aqua (user interface)|Aqua]]
| release_version = 10.0.4
| release_date = {{Start date and age|2001|6|22}}<ref>{{cite web|url=https://www.apple.com/support/downloads/macosxupdate_10_0_4.html|title=Mac OS X Update 10.0.4|archive-url=https://web.archive.org/web/20040411044906/https://www.apple.com/support/downloads/macosxupdate_10_0_4.html|archive-date=April 11, 2004}}</ref>
| GA date = {{Start date and age|2001|3|24}}<ref>{{cite press release|url=https://www.apple.com/newsroom/2001/03/21Mac-OS-X-Hits-Stores-This-Weekend|title=Mac OS X Hits Stores This Weekend|date=March 21, 2001|publisher=[[Apple Computer]]|access-date=January 11, 2018|archive-date=December 2, 2017|archive-url=https://web.archive.org/web/20171202102813/https://www.apple.com/newsroom/2001/03/21Mac-OS-X-Hits-Stores-This-Weekend/|url-status=live}}</ref>
| preceded_by = {{unbulleted list|[[Mac OS 9]]|[[Mac OS X Public Beta]]}}
| succeeded_by = [[Mac OS X 10.1]]
| tagline = The future is here. The power of UNIX with the simplicity and elegance of Macintosh.
| support_status = Historical, unsupported as of November 13, 2006{{Citation needed|date=June 2023}}
| date = January 2009 <!--approximate date of template insertion for dating hidden maintenance categories-->
| website = {{webarchive|url=https://web.archive.org/web/20010629214227/http://www.apple.com/macosx|date=June 29, 2001|title=Apple - Mac OS X }}
}}
{{macOS topics}}

'''Mac OS X 10.0''' ([[code name]]d '''Cheetah''') is the first major release of [[macOS]], [[Apple Computer|Apple's]] desktop and server [[operating system]]. It was released on March 24, 2001, for a price of $129 after a [[Mac OS X Public Beta|public beta]].

Mac OS X was Apple's successor to the [[classic Mac OS]]. It was derived from [[NeXTSTEP]] and [[FreeBSD]], and featured a new user interface called [[Aqua (user interface)|Aqua]], as well as improved stability and security due to its new [[Unix]] foundations. It introduced the [[Quartz (graphics layer)|Quartz graphics]] rendering engine for [[Hardware acceleration|hardware-accelerated]] animations. Many technologies were ported from the classic Mac OS, including [[Sherlock (software)|Sherlock]] and the [[QuickTime]] framework. The core components of Mac OS X were [[open source]]d as [[Darwin (operating system)|Darwin]].

Boxed releases of Mac OS X 10.0 also included a copy of [[Mac OS 9]].1,<ref name="cnet-missing">{{cite web |title=Mac OS X missing some key elements |url=https://www.cnet.com/culture/mac-os-x-missing-some-key-elements/ |website=CNET |language=en |date=2 Jan 2002 |access-date=January 10, 2023 |archive-date=January 10, 2023 |archive-url=https://web.archive.org/web/20230110130213/https://www.cnet.com/culture/mac-os-x-missing-some-key-elements/ |url-status=live }}</ref> which can be installed alongside Mac OS X 10.0, through the means of [[Multi-booting|dual booting]] (which meant that reboots are required for switching between the two OSes). This was important for compatibility reasons: while many Mac OS 9 applications could be run under Mac OS X in the [[Classic environment]], some, such as applications that directly accessed hardware, could only run under Mac OS 9.<ref name="cnet-missing" />

Six months after its release, Mac OS X 10.0 was succeeded by [[Mac OS X 10.1]], code named Puma.