• 7.1 Flew Over The Cuckoo’s Nest

  April 4, 2022 Timothy Prickett Morgan

  We think there is a lot of Power7, Power7+, and Power8 iron out there in the Power Systems running IBM i base, and we think there is a lot of IBM i 6.1 and IBM i 7.1 running on that iron. Our assertion is based on years of anecdotal evidence from the resellers and business partners we talk to, the customers we talk to, and a whole lot of spreadsheet witchcraft that we do based on survey data we see.

  The point is not just to come up with this data and then drop it and run, but to face …

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• Father, Son, & Co: Kisco Systems Drills Down On Security

  April 4, 2022 Timothy Prickett Morgan

  Rich Loeber was a divisional IT manager for over 16 years before he founded Kisco Information Systems in June 1984, four years before the AS/400 was launched. The System/36 had just launched the year before, and the System/38 had been around and in production for a handful of years at that time. Loeber founded Kisco – presumable named after Mount Kisco, a town in the Hudson Valley in New York State – to offer data processing services to IT shops in the New York metropolitan area.

  Two years later, Kisco became an independent software vendor in the IBM midrange, and …

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• Talking IBM i Shop With New Power Systems GM Ken King

  February 7, 2022 Timothy Prickett Morgan

  Every new general manager of the AS/400 division and its successors all the way up to the current Power Systems division – which hopefully is no longer called Cognitive Systems in the financials but nowhere else – inherits a unique configuration of that business in time and space and after one, two, or three years leaves it in another configuration.

  In all of our years of writing The Four Hundred, we have made an effort to get to know each and every one of them. Last July, ahead of the spinout of the Kyndryl managed services business in November, …

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• The Real IBM i Legacy Is The People

  February 7, 2022 Timothy Prickett Morgan

  I will never for the life of me understand why the word “legacy” has such a bad connotation in the IT business when in all other aspects of life it means something good. We talk about legacy systems, usually systems of record, a lot here at The Four Hundred, because we are focused on the AS/400 platform and its successors over the past three and a half decades. But the applications – and the people who extend and support them – that run on modern IBM i iron and some vintage predecessor systems have a heritage that extends back …

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• The Pivotal Year Ahead For Big Blue And IBM i Shops

  January 10, 2022 Timothy Prickett Morgan

  When we look back on it many years from now, this year, 2022, will be a pivotal year in the history of the Power Systems platform from Big Blue, which was commercially significant starting in February 1990 when the RS/6000 was launched but which obviously traces its roots through the IBM i and OS/400 branches of the Power Systems family tree all the way back to the System/3 launched in July 1969 just 10 days after humans first landed on the moon.

  There are different kinds of pivot points in the history of the IBM midrange platforms, including the launch …

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• Guru: Global Variables in Modules

  December 13, 2021 Ted Holt

  When I first learned to program computers (RPG II, COBOL 74), the only kind of variables I knew of were global variables. Any statement within a program was able to use any variable.  It was not until I started my computer science degree that I found out about local variables, which are known to only part of a program. Since that time, it has been my practice to use local variables as much as possible and global variables only when necessary.

  Ideally an RPG program, service program, module, or subprocedure would have no global variables at all, but I don’t …

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• The Mod Squad Comes Together to Modernize Old RPG

  October 6, 2021 Alex Woodie

  In the early 70s, a group of fictional social misfits joined up to solve crimes on the hit television series The Mod Squad. Now a group of real-life IBM i professionals of the same name are uniting to solve an equally pressing problem: modernizing old RPG code, including some that dates back to the 1970s.

  “You’ve heard of IBM‘s upward compatibility,” says Rich Ollari, an IBM i veteran who is one of the ringleaders of the new Mod Squad. “Code that ran back in the 80s, even the 70s, is still running today, and that’s what we’re fighting with. …

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• Historical, Functional, And Relevant

  July 12, 2021 Timothy Prickett Morgan

  The purpose of The Four Hundred, which entered its 33^rd year of publication this week, is to support the community of companies and their IT staffs – and ultimately the end users and the success of those companies – who have deployed their mission critical applications on System/38, System/36, AS/400, AS/400e, iSeries, System i, and now IBM i platforms for a decade longer than we have been around. My mentor, Hesh Wiener, and various colleagues who worked for other publications that covered the System/38 and System/36 from the time before I came onto the scene in July 1989, …

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• In The IBM i Trenches With: Computer Plus

  March 29, 2021 Timothy Prickett Morgan

  Welcome to a new series in The Four Hundred called In The IBM i Trenches.

  We spend a lot of time talking to people at IBM and at the key suppliers of systems software, application software, and development tools for the IBM i platform. But the ecosystem is a lot bigger than these players. There are thousands of resellers, each serving tens to hundreds to sometimes thousands of customers, depending. There are suppliers of third party maintenance as well as technical support and all kinds of programming and system management services. And there are an increasing number of hosting …

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• Don’t Be A Blowhard

  March 22, 2021 Timothy Prickett Morgan

  One of the things that made the AS/400 a great system, as well as the System/36 and the System/32 and System/34 before it, was that there were entry machines that had enough oomph to support the data processing and storage needs of small businesses within a reasonable budget and in a system that didn’t need a datacenter or even a data closet. They could be tucked under a desk, or left to run beside them.

  Way back in the dawn of time, there were special machines, even smaller than the original AS/400-B10 and AS/400 -B20, that were even smaller and …

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