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Re: NTSC Monitor Vs Apple IIgs' Monitor



In article <lK6dncSNFoHEacreRVnzvA@telenor.com>, kr-
lund@nogarbage.online.no says...
> Paul Schlyter wrote:
> 
> > In article <pan.2005.10.19.20.58.14.862648@emeraldcity.gov>,
> > The Wizard of Oz  <wizard@emeraldcity.gov> wrote:
> > 
> > 
> >>Of course I have a monochrome NTSC monitor
> > 
> > 
> > No you don't .... a "monochrome NTSC monitor" is an oxymoron.
> > 
> > NTSC is a system for *color* television.  A monochrome monitor does not
> > show any color and therefore lacks the circuitry needed to decode NTSC
> > signals.
> > 
> > 
> 
> Paul,
> 
> NTSC started out as the b&w standard and got colors later. What you say 
> would be correct for PAL because PAL is the color system, the addition 
> to the b&w, whatever that is called. SECAM is also built on the same b&w 
> standard as PAL.

The proper name for "NTSC b&w" is nowadays EIA 525/60.  The European
b&w standard is called CCIR 625/50:

  http://www.i-cubeinc.com/pdf/monitors/SON-PVM-137.pdf

EIA (Electronic Industries Alliance) has a standard for video signals
called RS-170 -- this is the proper name for "NTSC video".
http://en.wikipedia.org/wiki/Electronic_Industries_Alliance

CCIR = Comité consultatif international pour la radio
http://en.wikipedia.org/wiki/CCIR


So now you know that the Apple II outputs RS-232 in its serial port
and RS-170 on its video output !!!!!!!!!!


> Composite video might strictly speaking be neither NTSC nor PAL because 
> these are defined as RF signals. But on the other hand they even stamp 
> PAL or NTSC on DVD's while they are absolutely not that because they 
> contain only digital MPEG information. For DVD it refers to number of 
> lines and frame frequency only. I wonder if they would stamp SECAM on 
> the DVD's in France...
> 
> Knut
>