[Info-vax] Whither VMS?

[Bob Eager]

On Tue, 15 Sep 2009 08:38:11 -0500, Bob Koehler wrote:

>    However, 16 bit and 32 bit UNIX are two mode OS with the habit of
>    forking all over the place.  These are just two examples of kernel
>    design that haven't changed since the late 60s, when such were
>    popular in timesharing OS design.

Actually, I believe UNIX was the one who started it.

>> Lots has changed - more than VMS has. I would dispute the kernel and
>> file system statements, for a start.
> 
>    UNIX file system internals have been re-implemented for a large
>    number of reasons that the end user can't see.  Externals remain the
>    same, as does the on-size-fits-all file-as-a-stream-of-bytes.
> 
>    VMS, on the other hand, has changed file name sizes from 9.3 to just
>    about any length, from uppercase storing case insensitive to case
>    preserving with a choice between case sensitive and case insensitive,

UNIX started with 14 character filenames.

>    added ACLs to the protection implementation

So has UNIX.

>    added hard links

UNIX had them already, and added soft links.

>    added mount points.

Which UNIX had already. Difficult to say that UNIX 'hasn't changed' in 
some areas when VMS is just playing catchup, though.

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