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- Xref: sparky comp.unix.misc:4782 alt.amateur-comp:426
- Newsgroups: comp.unix.misc,alt.amateur-comp
- Path: sparky!uunet!news.mtholyoke.edu!jbotz
- From: jbotz@mtholyoke.edu (Jurgen Botz)
- Subject: Re: What makes Unix Special?
- Message-ID: <C04zI3.EuK@mtholyoke.edu>
- Sender: news@mtholyoke.edu (USENET News System)
- Organization: Mount Holyoke College
- References: <1992Dec31.062544.5838@news.columbia.edu> <31DEC199210495450@author.gsfc.nasa.gov>
- Date: Thu, 31 Dec 1992 18:32:27 GMT
- Lines: 65
-
- In article <31DEC199210495450@author.gsfc.nasa.gov> rkoehler@author.gsfc.nasa.gov (Bob Koehler) writes:
- >UNIX does not represent "an advance over past operating systems" in many areas,
- >having been written in 1969 it does show limitations due to the software
- >technology of that era.
-
- Unix wasn't really "written in 1969". It was begun in 1969. There's a big
- difference... the common Unix variants (SV, BSD4) are products of the late
- 70s.
-
- >Sound arguments can be made for technical superiority
- >of newer systems, such as VMS, written in the late 70s.
-
- Arguments can be made for anything. Sound ones... well, make some! ;-)
-
- >Currently most UNIX systems fall down in the areas or real-time, but POSIX
- >1003.4 will hopefully push more vendors toward adding pre-emptable kernels and
- >user level threads.
-
- Naw... POSIX is A Good Thing, but it's the availability of the Mach micro-
- kernel that is starting to give us more advanced OS capabilities. Thanks,
- CMU!
-
- >Often older UNIX systems have security weaknesses, which newer UNIX systems
- >have adressed.
-
- There's some truth to this, but then it depends on what you're comparing
- it to. The masses are often under the impression that Unix has "weak
- security," but the reality is that the holes in Unix are just better known
- that then holes in other OSes, because *Unix* is better known! There are
- a lot of people out there who know Unix inside-out and it's relatively
- easy to get access to source-code (that's how RTM developed his knownledge
- of Unix weaknesses, for example... by reading source code like other people
- read novels!) I suspect that most OSes have more open holes than Unix,
- they're just not well known because very few people know the OS well enough
- to find them. Security through obscurity.
-
- >One of my pet peeves in UNIX land is its closed nature. To me, open means you
- >can look inside. I cannot afford the current UNIX source license prices, but I
- >have found source licensing arangements for proprietary systems often an order
- >of magnitude lower.
-
- Really? I don't know otherwise, but I find this /very/ surprising. How
- much for a VMS source license? Can anyone even get it? Besides, a BSD-NET2
- "source license" is $0. Ditto for Linux. Ditto for the Mach microkernel (not
- Unix, but a good foundation for a Unix-workalike). Ditto for GNU.
-
- >And I'll still take VMS over UNIX any day. VMS owes some of its human
- >interface concepts to UNIX, and both should learn of few new tricks from each
- >other.
-
- *shrug*... I'll still take Unix over VMS any day.
-
- >Personally I hope POSIX will catch on [...]
-
- I agree.
-
- >And I no doubt have touched a spark to several flames in waiting, most
- >(or perhaps all) of which I will much too simply ignore.
-
- *grin*... I don't consider this response a flame, and I'm also not writing
- it to goad a response out of you, so go ahead and ignore it. But if you
- feel like replying, you can start by making those "sound arguments for the
- technical superiority of VMS."
- --
- Jurgen Botz, jbotz@mtholyoke.edu
-