[Info-vax] Editting paper tape
Paul Sture
nospam at sture.ch
Thu Oct 11 08:14:44 EDT 2012
In article <nospam-3003B6.13191511102012 at news.chingola.ch>,
Paul Sture <nospam at sture.ch> wrote:
> In article <slrnk7c1cu.lkm.brown at libra.gmcl.internal>,
> Rob Brown <brown at libra.gmcl.internal> wrote:
>
> > On 2012-10-10, Bob Koehler <koehler at eisner.nospam.encompasserve.org> wrote:
> > > In article <k51v8l$g5r$1 at Iltempo.Update.UU.SE>, Johnny Billquist
> > > <bqt at softjar.se> writes:
> > >>
> > >> Right.
> > >> It was originally "Tape Editor and Corrector", and the tape referred to
> > >> is paper tape.
> > >
> > > You can edit and correct paper tape? I thought that required a hole
> > > punch and some glue. 8-)
> > >
> > Reminds me of when I was in high school, editting my paper tapes
> > offline on an (I think) ASR-38. Typing mistake? Backspace the tape,
> > and then insert the RUBOUT character (%o377) the appropriate number of
> > times. When you were done, you could run the tape back into the the
> > ASR-38 tape reader and simultaneously punch a new tape. The RUBOUTs
> > were skipped during the copy and you got a clean tape out.
>
> That reminds me of an editor and perhaps another utility on RT-11. It
> was explicitly documented that rubouts would be stripped from the output
> file.
Nulls too. From the TECO User's Guide (Page 119):
"<NULL> A null (ASCII 0) encountered as a TECO command will be ignored.
Numeric values are not affected. A null read in from an input file will
be discarded (except under RSX-11 and VAX/VMS). A null typed in from a
terminal will be ignored."
--
Paul Sture
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