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Two years ago, mainframes were literally and figuratively being pushed out of Canada’s Department of National Defence (DND) in favor of distributed systems running various operating systems. Then the zEnterprise arrived. The DND mainframe team saw in the z196 and zBX a way to consolidate and centrally manage these myriad platforms as the core of a multi-platform, mainframe-based enterprise hosting strategy…

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Guest Author: Steve Guendert

“Programming” (and programming support) was an old data processing concept that originally was broadly defined as the adaptation of general-purpose devices to specific tasks.  Programming therefore goes back to Herman Hollerith wiring and rewiring (programming) his equipment to handle specific jobs.  By the early 1930s IBM was distributing information about novel (for the time) plugboard wiring diagrams to customers via a publication called Pointers.  Some of these diagrams were created by IBMers, but more importantly, many were created by customers who were willing to share their solutions with other customers.  A culture of programming support and sharing was well in place among IBM and its customers long before the S/360.  Actually, it was in place long before the first IBM 701 (the Defense Calculator) computer was installed.  Adapting this culture to meet the evolving requirements of its customers proved crucial to IBM’s success…

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