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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0answers
35 views

Switching To Agile For Mainframe [on hold]

Our company is discussing whether to change from waterfall to agile for mainframe development. Has someone experience with this situation? What method are you currently using and how did process of ...
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2answers
58 views

Working Agile on Mainframe

Why do teams that work in a mainframe environment barely use an agile working methodology? What are the key factors of not doing this despite all the technology available? If so, which agile ...
3
votes
9answers
410 views

Why were punch cards used for programming

I am doing a research essay on the history of programming languages, and I was wondering, why did programmers ever write their programs on punch cards? Didn't computer screens and keyboards already ...
1
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1answer
236 views

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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votes
1answer
11k 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?
2
votes
1answer
532 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 ...
11
votes
7answers
3k 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 ...
2
votes
2answers
414 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 ...
9
votes
8answers
2k 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 ...
50
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23answers
43k views

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 ...
4
votes
2answers
276 views

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 ...