[GreenKeys] Teletype Model 33 ASR vs. ASR33

Chris Elmquist chrise at pobox.com
Mon Aug 15 07:28:44 EDT 2011


On Monday (08/15/2011 at 12:47AM -0400), WA5CAB at cs.com wrote:
> I agree with Don.  

Sure. I understand.  But I think the question was about _when_ people
started (mis)using the term which we can show was happening at least as
early as 1970 in DEC documentation.

Chris N0JCF

> In a message dated 08/14/2011 23:27:07 PM Central Daylight Time, 
> Packard42 at gmail.com writes: 
> > Chris,
> > 
> > It does not matter how far back the term goes.
> > It is still as incorrect today as it was when the computer people  
> > first wrote it down.
> > 
> > Don
> > K9TTY
> > 
> > 
> > 
> > On 14 Aug 2011, at 10:43 AM, Chris Elmquist wrote:
> > 
> > On Sunday (08/14/2011 at 11:15AM -0400), Christian Gauger-Cosgrove  
> > wrote:
> > >
> > >The swapping of the type designation (KSR, ASR, RO) and model number
> > >on teletypes is due to the computing field. On machines that spoke
> > >ASCII the model 33 was a far, far more common terminal then it's more
> > >robust cousin the 35. This was due to cost, for example an excerpt
> > >from the 1970 price list for the DEC PDP-15:
> > 
> > Absolutely.  I was going to respond similarly--  I have in front of me
> > the assembly manual for the MITS Altair 680b microcomputer (c) 1976,
> > which throughout refers to ASR33/KSR33 when discussing the 20mA
> > console interface.
> > 
> > So I think the precedent goes back at least 35 or 40 yrs.
> > 
> > Chris N0JCF
> > 
> > -- 
> > Chris Elmquist
> 
> Robert & Susan Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480

-- 
Chris Elmquist



More information about the GreenKeys mailing list