Friday, January 12, 2007

Roland Hughes' The Minimum You Need to Know to be an OpenVMS Application Developer

OpenVMS (Open Virtual Memory System) is a high-end computer server operating system. As a multi-user, multiprocessing virtual memory-based operating system (OS), it is designed for use in time-sharing, batch processing, real time, and transaction processing. It offers high system availability through clustering and distributes the system over many machines. The ability to distribute both the application and a single transaction across multiple nodes is the heart of clustering; otherwise, it is just networking.

Roland Hughes’ book, The Minimum You Need to know to be an OpenVMS Application Developer, offers Computer Applications Developers, Consultants, Systems Analysts, and developers switching to OpenVMS, a detailed and informative companion guide to understanding and implementing the applications and modules needed to operate and maintain OpenVMS.

From logging into OpenVMS, each chapter charts a systematic guide to operating and sustaining the application coding and programming of essential modules running on OpenVMS. Such languages, tools, and databases as DCL, DEC BASIC, FMS, COBOL, CDD, FORTRAN, C/C++, MySQL, and RDB cover the heart of what you need to know as a maintenance programmer. Using a created lottery tracking system, Hughes generates a single application and develops it in each of the following: DEC BASIC, FORTRAN, COBOL, and C/C++. As well, Hughes shows readers how to use CDD, CMS, and MMS with these languages. By repeatedly applying the same method in different languages, Hughes demonstrates in a clearly written and easy to follow guide, how a programmer knowledgeable with one language can become skilled in others. The CD-ROM that comes with it contains the source code developed in the book allowing readers to learn the advantages and disadvantages of each language.

Well-illustrated examples with detailed analysis, descriptions, and definitions, allow the reader to follow the book while working with the server, thereby learning the “nuts and bolts” of creating, understanding, and managing command files. Each chapter details troubleshooting tips, error handling tips, reducing debugging time, as well as the Do’s, and Don’ts of writing applications. Following each chapter, there are exercises to enhance comprehension of the modules and applications in OpenVMS.

With a wealth of experience, Roland Hughes provides thoughtful and knowledgeable observations about the IT field. One important bit of knowledge he conveys: “IT is a way of life, not a job.” With easy to follow instructions and detailed examples, I highly recommend this informative and well-mapped book as an asset to those in the IT industry, as well to students entering the computer-programming field.

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Publisher: Logikal Solutions (March 2006)
Available: and
ISBN-10: 0977086607
ISBN-13: 978-0977086603
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