[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: NTSC Monitor Vs Apple IIgs' Monitor



In article <lK6dncSNFoHEacreRVnzvA@telenor.com>,
Knut Roll-Lund  <kr-lund@nogarbage.online.no> wrote:
> 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.

Interesting .... so that means the television system of Brazil shall
be called NTSC/PAL ???  NTSC because they use the NTSC b&w standard
(525 lines/etc), and PAL because the color is encoded according to
PAL standards.

This site:

   http://www.mtxindia.com/An1.htm

refers to the underlying 525-line b&w standard as EIA rather than NTSC.


Also: monochrome monitors are usually quite flexible.  I have an old
monochrome monitor myself which easily can sync to both 625-line CCIR
and 525-line EIA (or NTSC) video signals.


> What you say would be correct for PAL because PAL is the color system,
> the addition to the b&w, whatever that is called.

The 625-line b&w standard is called CCIR, which also is the name of a
now gone organisation: Committee Consultative Internationelle Radio
(French).  CCIR is now been replaced by ITU-T.

> SECAM is also built on the same b&w standard as PAL.

I know -- CCIR/SECAM transmissions can be viewed as black-and-while on
a CCIR/PAL TV.


> 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...

They probably do --- and such a DVD ought to be playagle on e.g. a
German "PAL" DVD player.


-- 
----------------------------------------------------------------
Paul Schlyter,  Grev Turegatan 40,  SE-114 38 Stockholm,  SWEDEN
e-mail:  pausch at stockholm dot bostream dot se
WWW:     http://stjarnhimlen.se/