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Mastering AS/400: Unleashing the Power of Enterprise Computing

Jul 24, 2023 5:56:02 PM


In the realm of enterprise computing, few platforms have stood the test of time and innovation like the IBM AS/400. Renamed as IBM iSeries and later IBM Power Systems, the AS/400 platform has continuously evolved to meet the demands of modern business operations while retaining its core strengths. In this blog, we will explore the legacy, capabilities, and advantages of the AS/400 platform, showcasing how mastering it can unleash the true power of enterprise computing.

A Brief Evolution of AS/400:

Introduced by IBM in 1988, the AS/400 was a revolutionary platform that combined the power of mainframe computing with the simplicity of a personal computer. It was designed to be an integrated solution for businesses, offering a single system for applications, database management, and system administration. Over the years, the platform underwent transformations, becoming the IBM iSeries and eventually the IBM Power Systems, with each iteration bringing enhanced features, performance, and scalability.

Unveiling the Capabilities of AS/400:

1. Integration and Scalability: The AS/400 platform was built with integration in mind, allowing seamless interoperability between applications, databases, and various data formats. It provides a unified environment where diverse software components can coexist and interact efficiently. Additionally, AS/400's scalability enables organizations to grow their computing resources as their business expands, without sacrificing performance.

2. Reliability and Security: AS/400's architecture prioritizes reliability and data integrity. Its robust design ensures high availability and minimal downtime, making it an ideal choice for mission-critical applications. Advanced security features, including role-based access controls, encryption, and auditing, protect sensitive data and ensure compliance with regulatory requirements.

3. Database Management: AS/400's integrated relational database management system (DB2 for i) simplifies data storage, retrieval, and management. It supports SQL queries and offers advanced capabilities for handling complex data structures. This built-in database management system streamlines application development and optimizes data-driven processes.

4. Application Development: AS/400 provides a comprehensive set of development tools, including RPG (Report Program Generator), COBOL, Java, and modern languages like Python and Node.js. These tools empower developers to create customized, efficient, and responsive applications that cater to specific business needs.

5. Virtualization and Partitioning: AS/400 pioneered virtualization and partitioning techniques, allowing multiple logical partitions (LPARs) to run on a single physical machine. This innovation optimizes resource utilization, enhances workload management, and reduces hardware costs.

6. Web Integration and Modernization: AS/400 has embraced web technologies, enabling organizations to modernize their applications and deliver web-based user experiences. With tools like IBM WebSphere Application Server and integrated web services, AS/400 applications can seamlessly integrate with the internet and provide a modern front-end.

Advantages of Mastering AS/400

1. Efficiency and Productivity: Mastering AS/400 empowers organizations to streamline their operations, reduce manual tasks, and increase overall efficiency. Its integrated nature and robust tools enhance productivity by simplifying development, deployment, and administration.

2. Cost-effectiveness: The AS/400 platform's scalability and resource optimization contribute to cost savings. By consolidating workloads and minimizing hardware requirements, organizations can achieve higher performance with fewer physical resources.

3. Legacy Modernization: Organizations with existing AS/400 applications can modernize their systems, extending their lifespan and integrating them with contemporary technologies. Mastering AS/400 enables the seamless integration of legacy systems with modern web and mobile interfaces.

4. Reliability and Availability: AS/400's reputation for reliability and availability ensures uninterrupted business operations. Mastering the platform allows organizations to build and maintain stable environments that deliver consistent performance and minimize downtime.

5. Strategic Innovation: By leveraging AS/400's capabilities, organizations can innovate strategically, creating unique solutions that address specific business challenges. Mastering AS/400 enables the development of tailored applications that drive innovation and competitive advantage.


Mastering the IBM AS/400, now known as IBM Power Systems, is a journey that leads to unlocking the full potential of enterprise computing. With its rich legacy, unparalleled integration capabilities, robust security features, and scalability, AS/400 offers a unique platform for businesses to optimize their operations, modernize legacy systems, and drive innovation. Embracing the power of AS/400 can propel organizations towards a future of efficiency, reliability, and strategic growth in the ever-evolving landscape of enterprise computing.

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