How many colors does Speccy have?

Hello, Black_Cat Bla> Any TV broadcaster knows the essence of the nature of this “mysterious” border, and she Bla> is not what was intended here in numerous versions. Essence Bla> this phenomenon is that in bad CRT monitors with a simplified Bla> design (especially TV) with increasing brightness of the point illumination Bla> raster... Apparently should also know that defocusing when changing brightness is not related to the "spreading of electrons" (remember what a "mask" is and why is she). Changing the brightness of the image changes the current at the second anode kinescope, and since the voltage on the focusing electrode is formed by the same circuit (transformer and multiplier), it also changes when changing brightness We turned up the brightness and the focus floated. And on old TVs, where horizontal scanning signals were generated in the same block, and also the size The image changed when the screen brightness changed. But in a particular case, speech goes IMHO about the dynamic effect: mor> in the first picture there are 2 familiar places: blue and red. mor> in the second picture there are the same 2 familiar places, but in reverse: red and blue. mor> and if you switch these images in software, the border will be visiblemor> between two familiar places. mor> It’s not even necessary to paint familiar places, you can take 2 pixels. mor> the colors as a result seem to be the same, but they differ in perception mor> they do, and I think I even saw it used in some demo mor> of this defect. Bla> Since this has nothing to do with the spec's circuitry, then Bla> somehow taking this effect into account in emulators is pointless. It may be pointless to take into account, but the effect may have on the Speccy circuitry direct relation: on the same monitors (or TVs) for different clones stripes could appear or be absent at the border of familiar areas.

Hello, Black_Cat Con> But in this particular case we are talking IMHO about the dynamic effect Well, that's what we're talking about. Bla> is similar to defocusing, but dynamic and not static Con> remember what is and why it is This is true for monitors with good circuitry. Con> on the same monitors (or TVs) different clones could Con> stripes appear or are absent on the border of familiar spaces In the absence of uniformity in the mixer circuit and signal levels - nothing surprising, it could have been worse - some have generally increased brightness didn't happen. What can I say? - they sculpted as best they could. At least that's not a reason to collect glitches in emuls. This effect is one of crookedness mixer + curvature of the TV video input (which in most cases is done by poking a hot object and was very dependent on the curvature of the hands) + the crookedness of the circuitry and settings of the TV itself. Anyway, rely on this as a possible free video effect - not worth it - this is the essence of the post, and not a discussion of circuit design untuned TVs.

Hello Conan Con> Stupid question? Then which of the following options is the most Con> exact definition: Con> Con> Con> * 16 colors Con> * 15 colors Con> * 8 colors and two brightness levels Con> * 7 colors and two gradations of brightness plus black Con> Con> Con> Can multicolors, for example, be considered additional colors? Con> Hardware and (or) software? All options are stupid. It is necessary to take the number of combinations in a familiar place, taking into account "two-color" pictures. Obviously, in a static image there are 15 distinguishable colors. Key word DIFFERENTIABLE. So talk about BRIGHT there's no point. And if I'm not mistaken, it turns out n!/k!(n-k)! colors, where k=2, n=15, in total there are about a hundred flowers.

Hello Conan Con> P.S. n!/k!(n-k)! colors, where k=2, n=15, ultimately gives 105. Diver Con> it turned out to be 102. The numbers don’t clash, who’s right? 102. Calculated by hand for accuracy. :p

Hello fk0 In chapter seven from the instructions for the branded ZX Spectrum (ZX Spectrum INTRODUCTION) said: The ZX Spectrum has eight colors to play with, and these are given numbers between 0 and 7. Although the colors look in random order, they do in tact give decreasing shades of gray on a monochrome TV. Here is a list or them for reference; they are also written over the appropriate number keys; 0; black 1 blue 2 red 3 purple or magenta 4 green 5 pale blue or cyan 6 yellow 7 white is eight colors. The names of the colors are given. Most domestic clones have hardware support for 15 colors, and some and 16 were displayed. So it’s not so , about Bright C similarly. P.S. n!/k!(n-k)! colors, where k=2, n=15, ultimately gives 105. Diver got 102. The numbers don't beat, who's right?