On a sunny day (Sun, 08 Mar 2020 14:16:09 -0400) it happened Dennis Lee Bieber
 wrote in :

>        The instructor of my data structures course made the mistake of saying
>we could use any of the languages available on the campus mainframe that he
>could read (so, no APL ). I chose Xerox Sigma BASIC -- which only
>allowed for four open files at a time... The assignment:
>
>        A Hashed-Head, Multiply-Linked List phone number directory
application.
>It just fit in the four file limit, and I used the a CHAIN LINK command to
>overlay the major functional modules -- the main module just handled the
>menu from which one selected an operation (look-up, edit, list all, etc.)

Nice, I like linked lists.


>        Don't recall if anyone used COBOL for it... Think one masochist did it
>in meta-symbol. Instructor probably expected most to use FORTRAN-IV.
>
>{The HHMLL based upon the Flores text. The only other place I've seen one
>used is in the file system of the Commodore Amiga}

Never had a Commodore myself, we had one at work though, played moonlanding
game on it...
:-)

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