Date   : Thu, 08 Jan 2015 08:18:05 +0100
From   : kortink@... (John Kortink)
Subject: Compromises

On Thu, 08 Jan 2015 00:33:44 +0000, "J.G.Harston" <jgh@...> wrote:

>Daniel Beardsmore wrote:
>> Level 1) MOS: four bits per pixel, for a total of sixteen
>> distinguishable colours, with no interest in what they look like
>> Level 2) Hardware: the DAC generates RGB colour data
>
>What DAC? The video system outputs digital colour levels, not analogue. 
>Three colour bits, each colour component either on or off, nothing in 
>between.

Explaining a limitation by describing it is not a very good
explanation.

Obviously, Acorn was not forced to use digital RGB, even at that
time. It was just a choice they made. I've always thought that
using flashing colours instead of proper ones was daft. Even
then. Not least because flashing colours can be achieved in a
different way.


John Kortink

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