Title: I&#x27;ve lamented here many times that if you want to dabble in the mainframe world, that there were no resources available to mere mortals. That has changed as of few months ago.<p>IBM&#x27;s &quot;Master the Mainframe&quot; platform has been renamed to zXplore and been reopened.<p>Even better, completion of this course and one other super basic one on IBM&#x27;s site opens you up to apply for a learner&#x27;s license of z&#x2F;OS (the dev&amp;test environment that runs on Linux) itself, which can be had for $120 a year.<p><a href="https:&#x2F;&#x2F;ibm.github.io&#x2F;zdt-learners-edition-about&#x2F;" rel="nofollow">https:&#x2F;&#x2F;ibm.github.io&#x2F;zdt-learners-edition-about&#x2F;</a>
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