Mainframe generally refers to the z/Architecture family of IBM computers which traces its ancestry back to the System 360 introduced by IBM in 1965. The most recent z/Architecture model is the z/Enterprise EC12 introduced in the fall of 2012. The operating system used by these machines can be ...

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COBOL & Mainframe & Business [closed]

I have made a search on a Hong Kong job seeking website. There numerous of jobs titled "Computer Analyst". These are the requirements of the job: Over 3 year experience relevant working experience in ...
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1answer
5k views

What is the difference, between a server and a mainframe? [closed]

To me, it seems as though "mainframe" is a somewhat dated term; is it simply an older synonym of "server," or does it server a purpose more similar to a cluster/supercomputer?
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1answer
440 views

COBOL program or JCL?

I have to perform 3 tasks: an insert, a delete, and a write I'm not sure what the best way to do this is. My mainframe program design skills aren't too tight, so I was looking for advice. Could I ...
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7answers
2k views

What are the advantages of mainframes? [closed]

The downsides of Mainframes is well trodden ground; expensive, legacy, dwindling community, etc. I'm not particularly interested in the downsides, but I am curious if there are any benefits to ...
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2answers
371 views

What's new in PL/I, DB2, and S/390 assembler?

I have an upcoming technical interview with a former employer that will focus on PL/I, DB2, and ISPF. The job will be with systems that I architected and wrote myself 20 years ago. The few years of ...
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8answers
1k views

Are there still any companies/academic centers that use mainframes from 60s-70s?

As a young software engineer, I often hear other colleagues talk about the days of punch cards and "computers as big as the room." The earliest memories of computers that I have involve MS DOS and ...
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23answers
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Why aren't young programmers interested in mainframes?

A key issue with mainframes is that the cohort of supporting programmers is dwindling. While normally this wouldn't be a problem in that a falling supply of programmers would be offset by an ...
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2answers
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Do you consider mainframe as part of large application deployments?

When you are setting up your system landscape for large and/or multiple application deployments, do you consider mainframe? If not, why not? If so, what factors are you considering. If you take a ...