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Without It, Windows and Linux Wouldn’t Exist! First Operating System in History Turns 70 and Still Influences Modern Technology for Computers, Servers, and Smart Devices

Written by Valdemar Medeiros
Published on 19/03/2025 at 08:58
Sem ele, Windows e Linux não existiriam! Primeiro sistema operacional da história completa 70 anos
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Director Completes 70 Years Since Its Creation: Discover What Was the First Operating System in the World and Its Importance for MacOS, Windows, and Linux Development. 

Whether Windows, Linux or macOS, without an operating system, a personal or professional computer would be unusable for the vast majority of users. The macOS, Windows, and Linux interfaces take a lot of work off our hands, automate processes, and present them visually appealingly. What many don’t know is that this foundation was laid by Director, the first operating system in the world, which turned 70 on March 8.

Discover What the First Operating System in the World Was Like

Before Windows and Linux, Director was invented at the Massachusetts Institute of Technology (MIT) to make more efficient use of the Whirlwind I, an innovative real-time digital computer built during the Cold War.

Before Director, computers simply executed a command given to them through punched cards or switches. To switch from one task to another, it was essential to manually change the command.

The first operating system in the world, on the other hand, was powered by magnetic tapes. These contained pre-defined instructions for automatic execution of commands.

The Whirlwind I then processed these activities one after another, without any human intervention. This was an early precursor to what is known as batch processing, which later became standardized in mainframe computers, such as those from IBM.

Batch processes also exist in various modern operating systems, such as Windows and Linux. It is worth mentioning that batch processing refers to the data processing in large groups, rather than in real-time. It is often used in data processing to enhance efficiency by gathering tasks and acting on them together later.

Understand the Importance of Whirlwind I

The Whirlwind I was essential for the United States during an important period. In addition to having the world’s first operating system, it served as the basis for the later SAGE system of the U.S. Air Force, which was created for air defense during the Cold War. On May 29, 1959, the computer was finally decommissioned after nearly 10 years, according to the Computer History Museum.

The first Windows was released on November 20, 1985. Initially, it was designed only as a graphical interface for Microsoft’s MS-DOS operating system, which had appeared four years prior. Today, Windows and Linux are among the most successful operating systems in the world. The classic macOS for Apple computers was launched in 1984, while Linux 1.0 was only released in 1994.

Why Is an Operating System Important?

It is worth mentioning that the operating system, as previously stated, is fundamental, as it allows the computer to function properly. It acts as an interface between the computer’s hardware and the user, managing resources, executing programs, and ensuring communication between system components. Without it, a PC would be unable to perform basic tasks and run programs.

The importance of the system for the computer’s operation is undeniable, as it controls access to the computer’s resources, such as processor, memory, hard drive, and input and output devices. Furthermore, the operating system provides a platform for the execution of applications and programs, enabling users to perform a variety of tasks.

Another crucial aspect is its ability to manage multiple processes and tasks simultaneously, ensuring efficiency and system stability. It is also responsible for ensuring data and system security, protecting against threats and ensuring data integrity.

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Valdemar Medeiros

Graduated in Journalism and Marketing, he is the author of over 20,000 articles that have reached millions of readers in Brazil and abroad. He has written for brands and media outlets such as 99, Natura, O Boticário, CPG – Click Petróleo e Gás, Agência Raccon, among others. A specialist in the Automotive Industry, Technology, Careers (employability and courses), Economy, and other topics. For contact and editorial suggestions: valdemarmedeiros4@gmail.com. We do not accept resumes!

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