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Quoth,
I am running Windows 10 on an Acer Aspire 1 laptop, and Microsoft's Command Prompt is bundled with the OS – it's in the Windows System folder, and as I mentioned in my post, I used it to remove Microsoft Edge from the laptop, which Uninstall will not allow you to do. It apparently will not run DOS, as you indicated, as when I typed in the “run” command after the C-prompt, a message came up saying that that command was not recognized (the DOS command “dir” was however recognized and worked fine).
Not sure as to the version of Windows I had when I last ran a DOS program under it, but it was probably post-pentium, judging by the incredible speed improvement in the execution of the program, a linear programming application written in Fortran for a mainframe, probably the IBM 360, and after porting to run on a PC under DOS, was tested on a then state-of-the art Compaq. The program was so computationally intensive it took hours to finish, even on the mainframe. Years later I ran it for fun on a Windows machine and it executed in three or four seconds.
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