Clem, On 8 Jan 2016, at 11:13 AM, Clem Cole wrote:
> I asked our (Intel's) corporate librarians to see if they could find > X3.27-xxx and in particular -1969 (the original) and -1978 which was version > 3. I agree with Paul, that V3 (-1978) was the version that most people > implemented. I seems to remember that, VMS started with V2 and upgraded to 3 > - as I remember on VAX Serial #1 trying to read tapes from it on the 360 or > the Univac was funky. > > I wish I could remember what changed between the versions. I once knew, and > I've sent a note to one of my old housemates that wrote some of the VMS tape > support years ago. He might remember/have some of this stuff. > > > Anyway, I'm trying to find my old copies the documents, but I fear they might > have been lost in the apt flood of a few years ago (I lost some historical > stuff in that that my wife made to toss). At one time, I had a photocopy of > the -1969 with my IBM/360 files. I know I still have one of the best > document on using tapes CMUs Computer Center wrote in the early 1960s (I know > I do still have it because I found that and referred to it last summer). > Anyway, I'll keep looking this weekend. > > BTW: the current version of the spec is not ANSI X3 mumble... It's now > called: INCITS 27-1987 [S2008] > http://webstore.ansi.org/RecordDetail.aspx?sku=INCITS+27-1987%5bS2008%5d > > > It's $60 from ANSI > > Clem > > On Fri, Jan 8, 2016 at 11:51 AM, Paul Koning <paulkon...@comcast.net> wrote: > > > On Jan 8, 2016, at 11:19 AM, khandy21yo <khandy2...@gmail.com> wrote: > > > > > > The programming manual that I foubd for rsrs.e documents it as 1. > > Thats the only documentation I have for the format, so went with what I > > had, and compared it against rsts distribution tapes. Not ideal, but better > > than nothing. > > I should have been more specific. According to the sources, RSTS V10.1 does > ANSI label format version 3. I don't know about older versions. > > paul > > > _______________________________________________ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh > X3.27-1978 (version 3) has a six page appendix spelling out the differences between -1969 and -1978. From my brief perusal, the significant changes that affect our conversation look like the elimination of Record Formats V and U in the HDR2 labels. I'm guessing there are very few version 1 tapes/tape images around. That might be the only situation requiring resurrection of the -1969 standard. The old RSTS 1976 doc might be good enough. Larry Baker US Geological Survey 650-329-5608 ba...@usgs.gov
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