Viewing profile — BillWoodger

JCL is not a language. It is no more than "the language, in the sense of words and symbols, that you use to define resources to a Job Step".

Moore's runs into the laws of physics: https://www.forbes.com/sites/gregsatell/2016/02/24/how-ibm-p... Mainframe DASD is the same as "X86" disks, at least for those using "storage …

What "virtualization magic" do you mean? You mean taking a program which hasn't been recompiled since 1970 and running it (the 1970 executable) on hardware released in 2014 under a…

Byte by byte? Where does that come into it? I don't think there's much Production work on a Commodore 64 these days. You don't have to "worry" about anything. I/O is asynchronous, …

You don't have to know, and many working on Manframes don't. No-one outside the Mainframe should need to know, unless you get the stupid "oh, but they refuse to change the program"…

As to the interchange of data, unless you run into a bunch of lazy Mainframers (they do exist) there's a lot they can do at almost zero "cost" to make it easy for you. It is not of…

Thanks for looking, I hope you didn't feel it lost in a bad way :-)

Correct about the I/O. You can let the space-bar auto-repeat 1919 times, for instance (nearest equivalent to circling the mouse) and the CPU cost is... zero. When, exactly, do you …

If you want DB2 in the operating system, you need an "IBM midrange" or iSeries. Much shorter code-path, much faster. If you want the fastest record access, the operating system z/T…