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- Path: newsfeed.ed.ac.uk!edcogsci!jeff
- From: jeff@cogsci.ed.ac.uk (Jeff Dalton)
- Subject: Re: Language "ranking" based on posts to users groups
- Message-ID: <DKo8w6.M2H.0.macbeth@cogsci.ed.ac.uk>
- Organization: Centre for Cognitive Science, Edinburgh, UK
- References: <4bbjbo$n8r@news.iwl.net> <4bcf8m$v1h@nntpd.lkg.dec.com> <4bcr6a$pja@ixnews8.ix.netcom.com>
- Distribution: inet
- Date: Thu, 4 Jan 1996 19:31:18 GMT
-
- In article <4bcr6a$pja@ixnews8.ix.netcom.com> mschmit@ix.netcom.com(Mike Schmit) writes:
- >>>What came first. The DOS backslash or the Unix forward slash. I was
- >>>under the impression that it was the Unix forward slash that was first.
- >>
- >>What a bizarre concept. Unix came first by over a decade, and wasn't
- >>the first to use '/' even then, it was based on Multics, which was, if
- >>I recall correctly, the first major OS with hierarchical directories
- >>and which used the slash to create pathnames for them back in the
- >>70's, [...]
- >
- >I think Multics was in the late 60's. Also, the Dartmouth time-sharing
- >system (DTSS) the inventors of BASIC and the first working time sharing
- >system, also had hierarchical directories, at least as early as 1968.
-
- It's possible (I think) that the DTSS got the idea from some of the
- Multics folk.
-
- But, bizarrely, ordinary users were discouraged from using
- directories. Indeed, the standard DTSS command interpreter
- provided no way to create them. There was another program,
- filemove, that did; but ordinary users didn't have permission
- to use it. However, DTSS Lisp could also create directories,
- and some people took advantage of that ...
-
- (Of course, someone writing in assembler could create directories,
- though it's possible that the assembler and the machine-code debugger
- were restricted in the same way as filemove.)
-
- -- jd
-
-