Mac operating systems

Computers use special tools to work.

Apple makes these tools for Mac computers. The first one came out in 1984. It was easy for people to use.

Later, Apple made a new tool. It was called Mac OS X. It helped the computer run better. It fixed some old problems.

This new tool uses icons on the screen.

Icons look like real things. For example, a folder holds your files. A trash can holds things you delete.

Today, this tool is called macOS. It gets a big update every year. It also works on phones and watches.

It is a very helpful tool for computers.

Apple makes software to run Mac computers. This software is called an operating system.

The first one came out in 1984. People called it the classic Mac OS. It was easy for people to use. But it had some problems. It could not manage memory very well.

Apple wanted a better way to work. They bought a company called NeXT. This helped them build a new system. It was first called Mac OS X.

This new system was built on a tool called Unix. It fixed many old technical problems. It allowed the computer to do many things at once.

Today, we call this system macOS. It gets one big update every year. It uses a special look for the screen. This is called a GUI. It uses icons to show files. For example, a folder holds files. A trash can holds things you delete. This system also helps run other Apple devices. It is the base for the software on iPhones and Apple Watches. It even helps run the Apple Vision Pro headset.

An operating system is the main software that runs a computer. Apple Inc. created two major series of these systems for Macintosh computers.

The first series is called the classic Mac OS. It began in 1984 with the original Macintosh System Software. This system was known for being easy for people to use. However, it had some hard jobs to do. It struggled with memory management and lacked some modern tools. This meant it could not always handle many tasks perfectly.

To fix these problems, Apple built a new way for the system to work. They bought a company called NeXT to help them.

This led to a new system based on NeXTSTEP, which is a Unix system. This new design solved many technical problems from the old version. It used a better way to manage memory and handle tasks. The first version of this new system arrived in 2001. It was originally called Mac OS X before being renamed macOS.

Apple worked on many different ideas before they found the right one. They tried several projects to connect different types of computers. Some of these were named A/UX, MAE, and MkLinux. They also had some projects that did not finish. These secret projects had names like Star Trek, Taligent, and Copland. Copland was meant to update the classic system. But Apple decided to buy NeXT instead to find a better path forward.

There are many important dates in the history of Mac software. The first Macintosh was released on January 24, 1984. The new Mac OS X system first launched on March 24, 2001. Its first version was codenamed "Cheetah." Later versions had names like "Puma" and "Jaguar." Since 2011, Apple has given users one major update every year. The newest version, macOS Sequoia, arrived in September 2024. Each year, the software gets better and newer features.

Even though the systems changed, they still look very similar. They both use a GUI, which is a graphical user interface. This means you use pictures to talk to the computer. You will see a menu bar at the top of the screen. You will also see the Finder, which uses a desktop metaphor. This uses icons to represent files and apps. For example, a folder holds files just like a real folder. A trash can icon is used to delete things.

{ "text": "An operating system is the essential software that manages a computer's hardware and allows users to interact with it. Apple Inc. has developed two major series of operating systems for its Macintosh computers.

The first series is known as the classic Mac OS. It debuted in 1984 alongside the original Macintosh System Software. This system was celebrated for being user-friendly and easy to navigate. However, it faced criticism for lacking modern technical capabilities. It struggled with memory management and lacked protected memory and access controls. These architectural limitations meant that software extensions could often cause system conflicts.\n\nTo resolve these deep technical challenges, Apple moved toward an entirely new architecture. Between 1997 and 2001, Apple developed a successor based on NeXTSTEP, which is a Unix-based system. This transition occurred after Apple purchased the company NeXT. This new foundation solved the memory management issues that plagued the classic version. The first version of this new era, Mac OS X, launched on March 24, 2001. It featured a new user interface called Aqua.

Over time, the name changed from Mac OS X to OS X, and finally to macOS in 2016.\n\nDespite the massive change in underlying architecture, both systems share a common Graphical User Interface (GUI). A GUI allows users to interact with the computer through visual elements rather than text commands. Both systems use a menu bar located across the top of the screen. They also utilize the Finder shell, which employs a desktop metaphor. This metaphor represents files and applications using icons. It relates digital actions to real-world objects, such as using folders for directories and a trash can for file deletion. This design also allows for overlapping windows to support multitasking.\n\nApple's path to the current macOS involved many experimental stages and failed attempts. Before Mac OS X, Apple released products like A/UX, which was a Unix-based system with a Mac interface. They also developed the Macintosh Application Environment (MAE) to run Mac apps on Unix workstations. Several high-profile projects were cancelled during the search for a replacement for the classic OS. One secret project, codenamed Star Trek, attempted to port the Mac OS to Intel-compatible computers in 1992. Another project, Taligent, was a joint venture with IBM that was eventually abandoned in 1995. Finally, the Copland project aimed to update the classic OS but was cancelled in 1996.\n\nThe history of Apple's software extends far beyond the Macintosh. Before the 1984 Macintosh, Apple released the Apple II in 1977, which ran Apple DOS and ProDOS. The Apple III arrived in 1980, running Apple SOS. In 1983, the Lisa computer was released with Lisa OS. Apple also developed the Newton OS for its Newton personal digital assistant between 1993 and 1997. The modern macOS architecture serves as the foundation for many other Apple devices. This includes iOS for the iPhone, iPadOS for the iPad, and watchOS for the Apple Watch. It also powers tvOS for Apple TV and the newer visionOS for the Apple Vision Pro mixed reality headset.\n\nApple has maintained a consistent schedule for software improvements in recent years. Since 2011, the company has released a major macOS update annually. The system has moved through many famous codenames, starting with version 10.0, "Cheetah," in 2001. Other notable versions include 10.1 "Puma," 10.2 "Jaguar," and 10.4 "Tiger." The system saw significant updates through versions like 10.6 "Snow Leopard" and 10.15 "Catalina." The most recent major release mentioned is macOS Sequoia, which arrived in September 2024. Looking forward, Apple has planned macOS Tahoe for release in 2025.\n\nUnderstanding these systems requires looking at how they manage complex tasks. The classic Mac OS used a monolithic design, meaning the system was built as a single, large unit. Early versions could only run one application at a time. Later, System 5 introduced cooperative multitasking to allow more activity. System 7 eventually added 32-bit memory addressing and virtual memory, which allowed the computer to run larger programs. In contrast, the modern macOS is based on the open-source Darwin operating system. Darwin is built on the XNU kernel and BSD, providing a much more stable and powerful environment for modern computing.", "media": [ "File:Mac OS wordmark logo.svg", "File:MacosxlogoX1.png" ] }