[GreenKeys] Slashed zero on Teletypes

[WA5CAB--- via GreenKeys]

IBM was 'way behind the times.  I have either two or three TG-7's (M15 KSR 
with series governed AC motors) with Slash-Zero.  So the practice dates at 
least back to WW-II.

In a message dated 05/19/2015 18:28:05 PM Central Daylight Time, 
coryheisterkamp at gmail.com writes: 
> That's been my experience as well; IBM went with the slashed letter O 
> while the rest of the industry went with slashed zero. What's interesting is I 
> have two Model 33's here, each with their own variation. Wish I knew where 
> these were originally used... -C
> 
> 
> On May 19, 2015, at 4:40 PM, David Christ wrote:
> 
> >Norwegian and Danish use a slashed O similar to a slashed zero.  Not with 
> a horizontal bar.  One of three additional vowels in their alphabet.  
> Effectively an O umlaut.
> >
> >As for slashed O, I can’t cite a reference but IBM core dumps started out 
> as one and zero.  So when alphabetic characters showed up the O was 
> slashed for differentiation from zero in output.  Teleprinter output was mainly 
> for text so that is probably why a slashed zero was used.
> >
> >This is based on memories from over 50 years ago so I am quite willing to 
> be corrected.
> >
> >David K0LUM
> >
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20150520/c0c3e30b/attachment.html>