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- Newsgroups: comp.arch
- Path: sparky!uunet!elroy.jpl.nasa.gov!ames!saimiri.primate.wisc.edu!nntp.msstate.edu!willis1.cis.uab.edu!hyatt
- From: hyatt@cis.uab.edu (Robert Hyatt)
- Subject: Re: <None> (Should be Open Systems, bloody NEWS system...)
- Message-ID: <1992Dec18.150228.8274@cis.uab.edu>
- Organization: University of Alabama at Birmingham
- References: <jdd.724022716@cdf.toronto.edu> <1992Dec14.191335.2834@lsl.co.uk> <BzGL07.2wK@dscomsa.desy.de>
- Date: Fri, 18 Dec 1992 15:02:28 GMT
- Lines: 56
-
- In article <BzGL07.2wK@dscomsa.desy.de> Hallam@zeus02.desy.de writes:
- >In article <1992Dec14.191335.2834@lsl.co.uk>, snail@lsl.co.uk writes:
- >
- >|>In article <jdd.724022716@cdf.toronto.edu>, jdd@cdf.toronto.edu (John DiMarco)
- >|>writes:
- >
- >|>> My basic point is this: A system's "openness" is a measure of its
- >|>> replaceability by a system from another vendor. By this standard, VAX/VMS
- >|>is
- >|>> not very open, and random-workstation/UNIX-variant is more but not
- >|>completely
- >|>> open.
- >|>
- >|>I'll go along with that.
- >
- >
- >Complete codswallop. By this definition the most "open" system is a house brick.
- >It is trivial to port any application that runs on a house brick to any other
- >system.
- >
- >Functionality also comes into it. If people write programs that require high
- >levels of functionality from an O/S then they are going to be less portable.
- >Does this mean that the O/S should as a result be regarded as being better if it
- >provides less features?
- >
- >Consider any application written for a line mode terminal using FORTRAN I/O. The
- >portability of these programs was pretty much setttled a long time ago. On the
- >other hand any code using a windows system soon becomes a porting hazard. On
- >UNIX there are even difficulties in porting code from one UNIX system to another
- >of the model and from the same vendor. This is because sysops tend to want to
- >split up large libraries amongst disks and UNIX does not provide a mechanism
- >like logical names which allow a user to virtualize a disk system to make it
- >look like something else. Logical links don't count in this regard, they affect
- >the system environment.
- >
-
- I don't understand the "logical links don't count"...... we use 'em for
- exactly this purpose. When Sun puts something somewhere that we don't
- like (don't have room in that partition, etc.) we move that "thing" and
- symbolic link to it. We've never had any problems with X, openwin, etc.
- in this environment.....
-
- >
- >UNIX is a single user system too. The only evidence of a multiuser capability is
- >
-
- This is news to us. We have been using unix boxes for multiple users for 15
- years. Unix is as multi-user as any O/S I have used. (this includes running
- X over async modem lines if you want....) We have students doing program
- development, email, compiling, remote machine access, distributed processing
- using domain sockets and/or RPC's, etc.
-
-
- --
- !Robert Hyatt Computer and Information Sciences !
- !hyatt@cis.uab.edu University of Alabama at Birmingham !
-