Re: The joy of FORTRAN

In article <gJEJO.198174$kxD8.85229@fx11.iad>,
Charlie Gibbs  <cgibbs@kltpzyxm.invalid> wrote:

On 2024-09-27, R Daneel Olivaw <Danny@hyperspace.vogon.gov> wrote:
>

Charlie Gibbs wrote:
>

And on the operating system side, I know of
OS/2, OS/3, OS/4, OS/7, and OS/9.

>
OS1100 bzw. OS2200.

>
Right, forgot about them.  Univac was a big contributor to
OS/<number>; in addition to 3, 4, and 7 above, they also
had OS-100 and OS-500 for variations of their 9300 operating
system that hung a Unicscope 100 or a DCT-500 terminal
onto the machine.  These were seldom used - we didn't need
much help filling out the 32K of memory available to us.
>
Is there an OS/5 or an OS/6 so we can complete the set
of one-digit numbers?

c1792 on the Modular One computer:


OS6

  An Operating Systems for a small computing system

  Joseph Stoy and Christopher Strachey

       ABSTRACT
       Part I is a general description of a simple operatirg
  system, which runs  in a virtual machine (implemented on    a real
  machine by an interpreter).      OS6 copes with only one user at a
  time, and is not a multiprogramming system:  many major problews
  associated with large operating systems  have therefore been avoided
  or considerably simplified.    It nevertheless has several features
  of interest,  including the fact that it is written almost entirely in
  the high-level language BCPL.      The most important single  feature,
  however, is the hierarchical nature of its control    structure, which
  avoids the need for a special job-control language.

       Part II covers the facilities for input/output, and the
  handling of files on the disc.      The input/output system uses a very
  general form of stream; the filing system is designed to have a clear
  and logical structure.



-Gordon