The first desktop version, Mac OS X 10.0, was released in March 2001, with its first update, 10.1, arriving later that year. All releases from Mac OS X 10.5 Leopard and after are UNIX 03 certified, with an exception for OS X 10.7 Lion. Apple's other operating systems (iOS, iPadOS, watchOS, tvOS, audioOS) are derivatives of macOS.
A key development for the system was the announcement and release of the iPhone from 2007 onwards. While Apple's previous iPod media players used a minimal operating system, the iPhone used an operating system based on Mac OS X, which would later be called "iPhone OS" and then iOS. The simultaneous release of two operating systems based on the same frameworks placed tension on Apple, which cited the iPhone as forcing it to delay Mac OS X 10.5 Leopard. However, after Apple opened the iPhone to third-party developers its commercial success drew attention to Mac OS X, with many iPhone software developers showing interest in Mac development.
Apple's original plan with macOS was to require all developers to rewrite their software into the Cocoa APIs. This caused much outcry among existing Mac developers, who threatened to abandon the platform rather than invest in a costly rewrite, and the idea was shelved. To permit a smooth transition from Mac OS 9 to Mac OS X, the Carbon Application Programming Interface (API) was created. Applications written with Carbon were initially able to run natively on both classic Mac OS and Mac OS X, although this ability was later dropped as Mac OS X developed. Carbon was not included in the first product sold as Mac OS X: the little-used original release of Mac OS X Server 1.0, which also did not include the Aqua interface. Apple limited further development of Carbon from the release of Leopard onwards and announced that Carbon applications would not run at 64-bit. A number of macOS applications continued to use Carbon for some time afterwards, especially ones with heritage dating back to the classic Mac OS and for which updates would be difficult, uneconomic or not necessary. This included Microsoft Office up to Office 2016, and Photoshop up to CS5. Early versions of macOS could also run some classic Mac OS applications through the Classic Environment with performance limitations; this feature was removed from 10.5 onwards and all Macs using Intel processors.
The Finder is a file browser allowing quick access to all areas of the computer, which has been modified throughout subsequent releases of macOS. Quick Look has been part of the Finder since version 10.5. It allows for dynamic previews of files, including videos and multi-page documents without opening any other applications. Spotlight, a file searching technology which has been integrated into the Finder since version 10.4, allows rapid real-time searches of data files; mail messages; photos; and other information based on item properties (metadata) or content. macOS makes use of a Dock, which holds file and folder shortcuts as well as minimized windows.
All system icons are scalable up to 512×512 pixels as of version 10.5 to accommodate various places where they appear in larger size, including for example the Cover Flow view, a three-dimensional graphical user interface included with iTunes, the Finder, and other Apple products for visually skimming through files and digital media libraries via cover artwork. That version also introduced Spaces, a virtual desktop implementation which enables the user to have more than one desktop and display them in an Exposé-like interface; an automatic backup technology called Time Machine, which allows users to view and restore previous versions of files and application data; and Screen Sharing was built in for the first time.
With the exception of Mac OS X Server 1.0 and the original public beta, OS X versions were named after big cats until OS X 10.9 Mavericks, when Apple switched to using California locations. Prior to its release, Mac OS X 10.0 was code named "Cheetah" internally at Apple, and Mac OS X 10.1 was code named internally as "Puma". After the immense buzz surrounding Mac OS X 10.2, codenamed "Jaguar", Apple's product marketing began openly using the code names to promote the operating system. Mac OS X 10.3 was marketed as "Panther", Mac OS X 10.4 as "Tiger", Mac OS X 10.5 as "Leopard", Mac OS X 10.6 as "Snow Leopard", Mac OS X 10.7 as "Lion", OS X 10.8 as "Mountain Lion", and OS X 10.9 as "Mavericks".
Mac OS X 10.5 Leopard was released on October 26, 2007. It was called by Apple "the largest update of Mac OS X". It brought more than 300 new features. Leopard supports both PowerPC- and Intel x86-based Macintosh computers; support for the G3 processor was dropped and the G4 processor required a minimum clock rate of 867 MHz, and at least 512 MB of RAM to be installed. The single DVD works for all supported Macs (including 64-bit machines). New features include a new look, an updated Finder, Time Machine, Spaces, Boot Camp pre-installed, full support for 64-bit applications (including graphical applications), new features in Mail and iChat, and a number of new security features. Leopard is an Open Brand UNIX 03 registered product on the Intel platform. It was also the first BSD-based OS to receive UNIX 03 certification. Leopard dropped support for the Classic Environment and all Classic applications. It was the final version of Mac OS X to support the PowerPC architecture.
Mac OS X 10.6 Snow Leopard was released on August 28, 2009. Rather than delivering big changes to the appearance and end user functionality like the previous releases of Mac OS X, Snow Leopard focused on "under the hood" changes, increasing the performance, efficiency, and stability of the operating system. For most users, the most noticeable changes were: the disk space that the operating system frees up after a clean install compared to Mac OS X 10.5 Leopard, a more responsive Finder rewritten in Cocoa, faster Time Machine backups, more reliable and user-friendly disk ejects, a more powerful version of the Preview application, as well as a faster Safari web browser. Snow Leopard only supported machines with Intel CPUs, required at least 1 GB of RAM, and dropped default support for applications built for the PowerPC architecture (Rosetta could be installed as an additional component to retain support for PowerPC-only applications).
The Metal API, first introduced in iOS 8, was also included in this operating system for "all Macs since 2012". According to Apple, Metal accelerates system-level rendering by up to 50 percent, resulting in faster graphics performance for everyday apps. Metal also delivers up to 10 times faster draw call performance for more fluid experience in games and pro apps.
It's also bit touchy when software tries to address memory that's out of bounds.. which they shouldn't be doing anyway, but there's quite a bit of poorly written classic Mac software out there. Especially games. There's a preference you can uncheck to make it tolerate those sorts of bugs, but it makes SheepShaver noticeably unstable.
Steam is a trendy digital platform for video games where game developers and players alike can buy and sell online video games. But not all games have to be bought as many are available free of charge. If you are a Mac user and want to know which free Mac Steam games are available, then keep reading.
Players have the option of joining either the Red or Blue and picking one of the nine character classes to play. One of the free steam games for Mac, Team Fortress 2 is also considered one of the best video games ever created.
It depends. Macs aren't specifically designed for professional gaming, but you can still play basic games on them. Macs are designed with functionality and software optimization in mind. Hardcore gaming takes a back seat in Mac designs.
I run Defense Grid (downloaded from Steam) also in windowed mode (altering the config.ini file), since fullscreen is black. Thanks for the tip (Mac OS X 10.5.8, 2.66Ghz Intel Core 2 Duo, Nvidia 9600 GT). Game works perfectly though, towers and aliens are visible in contradiction to other reports elsewhere.
Hi. I just downloaded Defense Grid for mac the other day since it was recently released by Virtual Programming. I've got the black screen issue. I can hear the music, but it's just a black screen. I'm on a 24" iMac running 10.5.8 w/Radeon HD4850 card. Any help would be appreciated. I'm no techie or a coder, so keep in that mind with your tips. :) Thankfully, a friend found this thread for me when I mentioned to him my problems.
We support the use of the following operating systems for our games, although this can vary by specific game title. For tips on how to check the system requirements, please see our Game Compatibility help article.
Windows XP compatibilityWhile our games are compatible with Windows XP, you may experience problems if your version of Windows XP is not up-to-date. If this is the case, we encourage you to update Windows XP to Service Pack 3, which is the most recent set of updates issued by Microsoft.
Supported Operating Systems for MacOur games are tested on the following Mac operating systems, but compatibility will vary for each game. Note: OS X 10.5 support discontinued on September 1, 2013.
Some downloadable games work on netbooks and mini-laptops, but these systems will have problems running newer and more graphically complex games due to their lower display resolution and reduced hardware power.
Downloadable and online PC and Mac games are not compatible with these Apple mobile devices, but please check out our iPhone/iPad page to browse our collection of games designed for your iPhone, iPod Touch, or iPad. These games can be purchased directly from the iTunes App Store, and the list is growing, so keep checking back. 2b1af7f3a8