AS/400 (IBM iSeries)

Key features and aspects of AS/400 (IBM iSeries) include:

• Integrated Operating System and Database: Combines OS and DB2 database for seamless performance.
• Reliability and Stability: Known for high availability and robust system uptime.
• Security: Advanced security features with object-level security and auditing.
• Scalability: Supports a wide range of workloads from small businesses to large enterprises.
• Compatibility: Runs legacy applications alongside modern programs.
• Ease of Management: Simplified system administration with integrated tools.
• Support for Multiple Programming Languages: RPG, COBOL, CL, Java, and SQL.
• Networking and Integration: Supports TCP/IP, web services, and integration with other systems.
• Virtualization and Cloud Support: Runs on IBM Power Systems with cloud capabilities.
• Automatic Workload Management: Efficient resource allocation and job scheduling.

While the AS/400 terminology is still used by some, IBM officially refers to this platform as IBM iSeries or IBM Power Systems with IBM i. The platform has demonstrated longevity and continues to be used in various industries for its reliability, security, and integrated approach to computing.

Before learning AS/400 (IBM iSeries), it's helpful to have a set of foundational skills that will facilitate your understanding of the platform and its associated technologies. Here are the key skills you should consider acquiring before diving into AS/400:

• Basic understanding of computer systems and hardware
• Familiarity with operating system concepts
• Knowledge of programming fundamentals (preferably RPG or SQL)
• Basic database concepts and SQL
• Understanding of system administration principles
• Familiarity with command line interfaces
• Interest in enterprise-level computing and legacy systems

While having these skills can provide a solid foundation, AS/400 is a versatile platform, and learning opportunities are available for individuals with varying levels of experience. It's also important to consider the specific role or aspect of AS/400 you intend to focus on, such as development, administration, or system integration, as this can influence the skills you need to emphasize.

Learning AS/400 (IBM iSeries) involves acquiring a diverse set of skills that cater to the platform's unique features and capabilities. Here are the skills you can gain by learning AS/400:

1. IBM i

• History and evolution of AS/400 to IBM i
• Overview of IBM Power Systems
• Key features and benefits of IBM i
• IBM i architecture and components

2. IBM i Operating System

• Understanding the OS architecture
• Command line interface and menu navigation
• System values and libraries
• User profiles and security basics

3. Programming on IBM i

• Introduction to RPG IV programming language
• Control Language (CL) programming
• SQL programming on IBM i
• Debugging and compiling programs

4. Database Management

• IBM Db2 for i overview
• Creating and managing physical and logical files
• SQL queries and stored procedures
• Backup and recovery techniques

5. System Administration

• User and group profile management
• Security administration and auditing
• Job scheduling and batch processing
• System backups and recovery

6. Networking and Communication

• TCP/IP and network configuration
• Remote access and terminal emulation
• Integration with other systems and protocols

7. Advanced IBM i Topics

• Web services and API integration
• Modernization techniques
• Cloud and virtualization on IBM i

Learning AS/400 provides a unique skill set that is particularly valuable in industries and organizations where the platform is still in use. It's worth noting that while AS/400 skills are specific, the concepts learned on this platform can often be applied to other environments and technologies, contributing to a well-rounded skill set for IT professionals.