IBM i History

1978: Introduction of System/38 Architecture

IBM unveiled the System/38 architecture, representing a significant leap in midrange computing technology. It introduced the concept of a single-level store, allowing seamless integration of programs and data. This innovation simplified data management and improved system efficiency, laying the foundation for future IBM midrange systems. System/38 was designed to be highly reliable and offered a unique approach to data storage and retrieval, setting new standards in the computing industry.

1983: Introduction of IBM System/36

IBM introduced the System/36, a midrange computer system tailored for small and medium-sized businesses. It provided integrated solutions for business applications, combining hardware and software to streamline computing processes. System/36 was designed with ease of use in mind, featuring a user-friendly interface and pre-integrated software packages. It offered flexibility, allowing businesses to adapt to changing computing needs and laid the groundwork for IBM’s future midrange systems.

1980s: The Origin of AS/400

In the mid-1980s, IBM revolutionized business computing with the introduction of the AS/400, a versatile and powerful midrange computer system. Its operating system, OS/400, was meticulously designed to seamlessly integrate with the AS/400‘s hardware, providing businesses with a robust computing solution. During this period, IBM established a foundation for what would become a long-lasting legacy in the world of enterprise computing.

1990s: Rebranding and Advancements

As the 1990s unfolded, IBM faced the challenge of rebranding its AS/400 product line to align with the evolving technological landscape. In the mid-1990s, the introduction of the “eServer” initiative led to the rebranding of AS/400 as eServer iSeries. Despite the rebranding, the core essence of the system remained intact, emphasizing reliability, scalability, and seamless integration. OS/400, the operating system, continued to evolve, incorporating advancements that catered to the expanding needs of businesses in an increasingly digital world.

Early 2000s: Transition to i5/OS

The early 2000s marked a significant transformation for IBM’s midrange systems. In 2004, IBM rebranded the eServer iSeries as eServer i5, emphasizing the utilization of POWER5 processors, indicative of a leap in processing power. Concurrently, the operating system was renamed from OS/400 to i5/OS. This change was more than cosmetic; it represented a deep integration of the operating system with IBM’s advanced hardware technologies, enabling businesses to handle complex tasks with increased efficiency and speed.

Mid-2000s: Becoming IBM i

By the mid-2000s, IBM recognized the need for a more unified approach to its midrange systems. In 2006, IBM rebranded its product line as System i, emphasizing the system’s integration capabilities and versatility. However, the most profound change occurred in 2008, when IBM merged the System i with the System p platform, forming IBM Power Systems. This amalgamation led to the renaming of the operating system from i5/OS to IBM i, symbolizing a broader, more encompassing vision beyond specific processor technologies. IBM i became a testament to IBM’s commitment to providing businesses with an all-encompassing computing solution that could adapt to various needs seamlessly.

Introducing Version Naming: IBM i 5.4 and 6.1

With the rebranding to IBM i, IBM simplified the versioning system. The complex Version, Release, Modification scheme was replaced with a more straightforward Version. Release format. This change not only streamlined the naming conventions but also reflected IBM’s focus on clarity and accessibility. Versions like i5/OS V5R4 and V6R1 were transformed into IBM i 5.4 and 6.1, respectively, signifying a more user-friendly approach to understanding the system’s progression.

Below image shows Main Menu of IBM i 7.1, shown inside a TN5250 client

Technology Refreshes and Continued Advancements

In the time of IBM i 7.1 and beyond, IBM introduced a novel concept – Technology Refreshes. These updates allowed for the introduction of new features and enhanced hardware support through optional updates, delivered as Program Temporary Fixes (PTFs) for specific releases. This approach provided businesses with the flexibility to tailor their systems according to their unique requirements. IBM’s commitment to continuous improvement and adaptability was evident through these Technology Refreshes, ensuring that IBM i remained at the forefront of innovation in the ever-changing landscape of enterprise computing.

PTFs are used to fix bugs, apply updates, or install new features in the operating system and related software. They are essentially patches or fixes provided by IBM to address specific issues or enhance system functionality. To apply PTFs, you typically use the IBM Navigator for i or the command line with commands like ‘APYPTF’. Keep in mind that the process may vary based on your specific IBM i version and configuration.

Command ‘DSPSFWRSC’ shows infoprint of PTF.

Below Diagram shows Roadmap OF IBM i History

Conclusion: A Legacy of Adaptation

The evolution of IBM’s midrange systems, from the pioneering days of AS/400 to the sophisticated era of IBM i, represents a legacy of adaptation and innovation. Each rebranding effort and technological advancement were not merely a change in name but a strategic response to the evolving needs of businesses worldwide. The transition from AS/400 to IBM i is a testament to IBM’s enduring commitment to providing cutting-edge solutions that seamlessly integrate with advancing technologies. The legacy of IBM i continues to shape the future of enterprise computing, embodying a tradition of excellence and adaptability that defines IBM’s unparalleled contribution to the world of technology.

Upcoming Developments and Improvements in IBM i

Over the years, IBM i, formerly known as AS/400, has experienced revolutionary changes. It used to be mostly linked with using RPG and COBOL programs to execute business-related applications. But there has been a striking shift in recent years toward modernity and adaptation.

By supporting modern languages like Python and Node.js, IBM i has embraced openness in the world of programming languages. This growth enables companies to upgrade their apps and access a larger talent pool. The platform has also evolved to be more cloud-friendly, allowing for simple interaction with hybrid cloud settings. This is in line with the industry’s transition to cloud computing, allowing businesses to take advantage of scalability and flexibility.

Security has been boosted to protect against cyber threats, and it can help harness the power of data for better decision-making using artificial intelligence. IBM is actively updating and supporting IBM i to ensure it remains relevant and robust. In essence, it has modernized to fit into today’s tech landscape while preserving its core strengths.

Here are some general areas where you might expect upcoming developments and improvements:

• Open Hybrid Cloud Platform:

  Integration: IBM was working on integrating IBM i with cloud services, enabling seamless integration with hybrid cloud environments. This is a crucial step in building an open hybrid cloud platform.

  Open-Source Integration: The incorporation of open-source technologies like Python, Node.js, and PHP allows for greater flexibility in developing cloud-native applications and services that can run both on-premises and in the cloud.

  Containerization: Exploring containerization technologies like Docker and Kubernetes can help facilitate the deployment and management of applications across hybrid cloud environments, making it easier to move workloads between on-premises and cloud infrastructures.

• AI (Artificial Intelligence)

  AI and Analytics: IBM was exploring the integration of AI and analytics capabilities into IBM i. This development could enable businesses to leverage AI for data analysis, predictions, and automation of tasks, enhancing their AI-driven applications.

  Performance Improvements: AI workloads often require substantial computational power. The performance improvements in IBM i would be beneficial for running AI workloads efficiently.

  Data Management: Enhancements to the Db2 for i database system can support AI initiatives by providing a robust and efficient platform for managing and analyzing data, a fundamental aspect of AI.

• Modernization:

  In the context of IBM I, it refers to efforts aimed at updating and improving the user interface and overall user experience of the IBM I platform.

  Graphical User Interface (GUI): In the past, IBM i was renowned for its text-based, still-common green screen interface. However, modernization initiatives call for the development of GUIs that are easier to use and more aesthetically pleasing. These GUIs are made to facilitate user interaction with the system, task completion, and information access.

  Web-Based Interfaces: Creating web-based interfaces to access IBM i operations and data is a common component of modernization projects. Web interfaces are accessible from a variety of devices having web browsers, such as desktop computers, tablets, and smartphones, and they are platform independent. More flexibility and accessibility are offered by this method.

  Responsive Design: Modern user interfaces frequently use responsive design principles to make sure the interface adjusts to various screen sizes and devices. The user experience is improved across several platforms as a result.