comp.sys.mac.advocacy

"Timberwoof" wrote in message
news:timberwoof.spam-CFF277.23060729032008@nnrp-virt.nntp.sonic.net...
> In article ,
> "Hasta La Vista" wrote:
>
>> "Alan Baker" wrote in message
>> news:alangbaker-9E4D21.19573229032008@[74.223.185.199.nw.nuvox.net]...
>> > In article ,
>> > "Hasta La Vista" wrote:
>> >
>> >> "In any video system, even a digital-input monitor, there's an
>> >> amplifier
>> >> at the end of the signal path that has to provide a specific voltage
>> >> or
>> >> current level for the pixel element."
>> >>
>> >> That's claiming a digial input uses an analog signal, Gimp.
>> >
>> > No, that's claiming that a digital input gets converted to an analog
>> > voltage to actually drive the pixels.
>>
>> So the answer is yes, not no.
>>
>> > Since each pixel doesn't have it's
>> > own dedicated logic in interpret a signal of ones and zeros,
>>
>> Yes it does. Each pixel has its own discrete range of steps that are
>> defined by a number, not a continuously varying analog level.
>
> The element that creates the light values of the pixel receives an
> analog voltage.

In a CRT tube. Not in an LCD display or any other type of digital display.

> That voltage may be any of ~256 discrete values, but it
> is nevertheless an analog signal.

Anything in discrete steps is not an analog signal. Analog varies
continuously and infinitely, without any steps.