What Is macOS? Full Information About macOS
macOS: a Brief Definition
macOS is a Unix operating system developed and marketed by Apple Inc. since 2001, serving as the primary operating system for Apple's Mac computers.
The macOS, previously known as Mac OS, was first introduced in 1984 to run Macintosh personal computers. Over nearly 40 years, the operating system has evolved, with the latest version, Ventura, announced in 2022.
The Mac operating system is well-known for its user-friendly graphical interface, which was so influential that it even inspired Microsoft to adopt similar interfaces for their Windows operating systems. Macs are designed specifically for the hardware they run on and come with a range of beautifully designed apps, making them unique and not easily replicable on other computers.
macOS vs. Mac OS X
Mac OS X was launched on March 24, 2001, with "X" representing the Roman numeral 10. The correct pronunciation is "ten", not the letter "X". Each version was named after a great cat, such as Cheetah, Puma, and Tiger, while internally using wine names like Merlot and Chardonnay.
In 2012, the operating system was renamed from Mac OS X to OS X, and in 2013, the name was changed again to macOS, with the name of each version being a location in California. The Mountain Lion was the last version with a cat-themed name, with subsequent releases featuring place names.
Over two decades, Mac OS X has undergone significant evolution, transforming from a slow and limited operating system in its first edition to the robust and feature-rich macOS we know today. Despite initial issues with speed and compatibility with essential apps like Microsoft Word, subsequent iterations and design updates have addressed these problems, resulting in a user-friendly and powerful operating system that has become synonymous with Apple's brand.
macOS Release Versions (Including Mac OS X and macOS)
Apple releases a new version of macOS approximately every year. The release versions of macOS are shown in the table below, providing insight into the development process.
The chart lists the versions of Mac OS X and OS X, starting with Mac OS X 10.0 Cheetah, followed by Jaguar, Panther, Tiger, Leopard, Snow Leopard, Lion, Mountain Lion, Mavericks, Yosemite, El Capitan, Sierra, High Sierra, Mojave, Catalina, Big Sur, Monterey, and Ventura.
| Version and Name | Release Date | Supported Devices |
| Mac OS X 10.0 Cheetah | 2001/3/24 | Apple's G3, G4, and G5 processors were used in various Mac models, including the iBook and PowerBook laptops, Power Mac desktops, and iMac all-in-one desktops. These processors were used in a variety of Mac models from the late 1990s to the mid-2000s. |
| Mac OS X 10.1 Puma | 2001/9/25 | |
| Mac OS X 10.2 Jaguar | 2002/8/24 | |
| Mac OS X 10.3 Panther | 2003/10/24 | Macs with a New World ROM |
| Mac OS X 10.4 Tiger | 2005/3/29 | Macs with built-The iMac G3 was a line of all-in-one desktop computers produced by Apple from 1998 to 2004. It was known for its sleek, compact design and was available in a range of colors. |
| Mac OS X 10.5 Leopard | 2007/10/26 | G4, G5, and Intel Macs (32-bit or 64-bit) at 867 MHz or faster Classic support dropped from 10.5 and later. |
| Mac OS X 10.6 Snow Leopard | 2009/8/28 | Intel Macs (32-bit or 64-bit) |
| Mac OS X 10.7 Lion | 2011/7/25 | Intel Macs (64-bit) |
| OS X 10.8 Mountain Lion | 2012/7/25 |
MacBook (Aluminum, Late 2008 or later) MacBook Pro (Mid 2007 or later) MacBook Air (Late 2008 or later) Mac Mini (Early 2009 or later) iMac (Mid 2007 or later) Mac Pro (Early 2008 or later) Xserve (Early 2009) |
| OS X 10.9 Mavericks | 2013/10/22 | |
| OS X 10.10 Yosemite | 2014/10/16 | |
| OS X 10.11 El Capitan | 2015/9/30 |
The second table shows the macOS versions:
| Version and Name | Release Date | Supported Devices |
|
macOS 10.12 Sierra |
2016/9/20 | MacBook Air (Late 2010 or later) Mac Mini (Mid 2010 or later) iMac (Late 2009 or later) iMac Pro (2017) (macOS 10.13) Mac Pro (Mid 2010 or later) |
| macOS 10.13 High Sierra | 2017/9/25 | |
| macOS 10.14 Mojave | 2018/9/24 | MacBook Pro (Mid 2012 or later) Mac Mini (Late 2012 or later) iMac (Late 2012 or later) iMac Pro (2017) Mac Pro (Mid 2010 or later) |
| macOS 10.15 Catalina | 2019/10/7 | MacBook Pro (Mid 2012 or later) Mac Mini (Late 2012 or later) iMac (Late 2012 or later) iMac Pro (2017) Mac Pro (Late 2013 or later) |
| macOS 11 Big Sur | 2020/11/12 | MacBook Pro (Late 2013 or later) Mac Mini (Late 2014 or later) iMac (Mid 2014 or later) iMac Pro (2017) Mac Pro (Late 2013 or later) |
| macOS 12 Monterey | 2021/10/25 | Mac Mini (Late 2014 or later) iMac (Late 2015 or later) iMac Pro (2017) Mac Pro (Late 2013 or later) Mac Studio (2022) |
| macOS 13 Ventura | 2022/10/24 | Mac Mini (2018 or later) iMac (2017 or later) iMac Pro (2017) Mac Pro (2019) Mac Studio (2022) |
macOS: What Is the Latest Version
The latest version of macOS is macOS 13 Ventura, which is set to release on October 24, 2022.
macOS Monterey, the 12th major release of the Mac operating system, was named after a California city well-known for its beaches, surfers, and windsurfers. It added a new Stage Manager windowing system and changed System Preferences to System Settings.
The Stage Manager feature in macOS Ventura automatically organizes open files and applications by placing the main window in the center of the screen and displaying small icons for other open files and apps on the left side. If you're interested in trying out these new features, you can download macOS Ventura, but be sure to use Time Machine Backup to back up your data before upgrading your Mac computer.
Additional new features include:
- Edit or delete messages sent via iMessage
- Shared tab groups
- Passkeys that replace passwords in Safari
- iCloud shared photo library
- New Clock and Weather apps
- Enhanced smart folders in Notes
- Spotlight improvements
- Improved gaming experience
- Live text for videos
- Calming background sounds
Besides the latest version, the following three are the most frequently used and of massive support.
macOS 12 Monterey
macOS Monterey was announced during the 2021 Worldwide Developers Conference, with its features focusing on social communication and privacy. The operating system includes SharePlay, which allows up to 32 people to watch the same media simultaneously through FaceTime, enabling time synchronization and playback controls for all participants.
The WWDC keynote featured a demo of Universal Control, a feature that allows users to connect multiple Macs and iPads, and use a single mouse and keyboard to control all devices wirelessly, essentially meshing multiple computers into one.
- Digital Legacy refers to the process of designating trusted individuals, often friends or family members, to inherit and manage digital assets, such as emails, photos, and social media accounts, after one's passing. This allows for the safekeeping and sharing of cherished memories and important digital information, ensuring that loved ones can access and cherish these digital treasures for years to come.
- On your Mac, go to System Preferences > Reset, then select "Restore Settings to Their Factory Condition." This will erase all content and settings, returning your Mac to its original state, similar to the "Erase All Content and Settings" feature on the iPhone.
- Addition of microphone and camera indicators
- New iCloud Shared folder in the Finder
- Low Power Mode for Bluetooth devices
- A dedicated password manager in System Preferences
- Shortcuts app added to the Mac
macOS 11 Big Sur
macOS 11 Big Sur, named for the mountainous region in central California, is the 17th major release of the Mac operating system.
macOS Big Sur, which marked the milestone of macOS 11, introduced a significant change by transitioning to Apple Silicon as its processor, replacing Intel.
New features include:
- Safari: 50 percent faster than Chrome
- The Control Center
- Customizable widgets in the notifications menu
- Supports iOS apps on Apple M-1 chip Macs
- Spatial audio support for AirPods Pro
- Maps app: Look Around capability
- Improved group messaging in Messages
macOS 10.15 Catalina
macOS 10.15 Catalina was announced in June 2019 and represents the 16th major release of the Mac operating system, named after the island of California.
Catalina has made some notable changes, including removing the widget app Dashboard and adding new features. Notably, Sidecar allows iPads to be used as a second screen through AirDisplay or AirParrot, while also splitting iTunes into three separate sections: Music, Podcasts, and Apple TV. The Finder has also been updated to manage iOS devices connected to Mac, and the Find My feature now combines Find My Mac and Find My Friends.
A quick review of the key new features:
- 64-bit applications only
- Catalyst apps
- Sidecar iPad second screen
- iTunes breakup
- Find My app
Conclusions
macOS, developed by Apple, has undergone significant changes and innovations over the years, evolving from Mac OS X to macOS. The latest version, Ventura, was released last year. Each iteration, from Cheetah to Ventura, has introduced new functions or features, shaping the operating system into what it is today. This transformation can be understood through the four distinct parts of its development.
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