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imgabe10/02/20242 repliesview on HN

Is there anything particularly different about mainframes compared to working on a server besides it probably being a different operating system? I assume it has a command line and you ssh into it somehow (or something similar)? Or are they still running punch cards or something?


Replies

julian_t10/02/2024

It's a very different (and foreign) environment. Job control language, how data is stored... if you come from a typical modern server environment you'd be pretty lost in the mainframe world.

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lefessan10/02/2024

You can find videos on Youtube, it's like an IDE where you would do everything in a user interface with menus, but the interface is a 25x80-char screen only :-) Everything is "almost" similar to a Unix system, but with different names, files are called "datasets", there are very few tools, but every one of them has a language to do very complex tasks...