[conspire] punched paper tapes (was: Re: EIA RS-232-C, ... Re: DE-9, not DB-9 (was: ...

[Texx]

We discovered at the computer history museum that the most reliable medium
is punched mylar tape.

Mag tapes fade as do CDs and DVDs.
In tropical climates there is a microbe that eats the data off CDs.  Not
sure if it eats the plastic or the metal bits.
Paper tape and cards get mildew.
Chm has a bunch of paper tapes sealed because of black mildew and they are
afraid to understand seal them to read them for fear of the mildew.

At some point in time I plan to rebuild my tape punch for a cancellation
project.

Hmm wonder how much tape is needed to store an Ubuntu image?


On Sat, Mar 9, 2019, 01:06 Michael Paoli <Michael.Paoli at cal.berkeley.edu>
wrote:

> > From: "Rick Moen" <rick at linuxmafia.com>
> > Subject: Re: [conspire] EIA RS-232-C, ... Re: DE-9, not DB-9 (was: ...
> > Date: Fri, 8 Mar 2019 20:18:39 -0800
>
> > Quoting Texx (texxgadget at gmail.com):
> >
> >> Several things:
> >>
> >> I will admit to confusion about DE.
> >
> > All you need know about DE-9 is that product packaging will reliably
> > and consistently say 'DB-9'.
> >
> >> I still have a current loop teletype.
> >
> > D00d!  Maybe I can finally find out what's on my punched paper tapes
> > left over from the '70s.  (It's probably stuff like David Ahl's port of
> > LUNAR to HP Time-Shared BASIC.[1])
>
> I don't think it's too hard to read/decode those tapes.  If I recall
> correctly, many of them were basic even parity ASCII ... but it's been a
> *long* time - so I may not have that correct.  I know I had a tape where
> I typed/punched out the alphabet.  :-)
>
>
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