They usually did not have 256 colors at their disposal, but usually up to 16. I think a certain confusion arose from the original questioner on the English-speaking Quora.
The IBM computers that were running MS-DOS and VGA video card[5 were able to conjure 256 colors from a color palette of 262,144 on the screen with a resolution of 320×200 pixels.This VGA video card was first introduced in 1987 over 30 years ago. These IBM computers and their clones were 16-bit computers. [6
What is meant by 8-bit is the number of colors, 256 is after all 2 to power 8.
An example of a palette of 256 colors
A screen shot of a computer game in 256 colors, with a resolution of 320×200 (King’s Quest V from 1990) [7
Furthermore, the term 8-bit computers mean that the CPU or the computer’s central processor have 8-bit database input, while the 16-bit computers CPU have 16-bit database inputs.
Briefly said by the bend, this means that the 16-bit computers can handle multiple data faster.
I hope that this question will be answered.
[7 King’s Quest V: Absence Makes the Heart Go yonder!Screenshots for DOS-MobyGames
The majority consisted of all combinations of red, green and Blue, in increments of 20%.That delivers 6 X 6 X 6 gradations, so 216 in total.That is also what one called Web-safe colors in the early years of the web.
The remaining 40 were just as different on many systems and/or reserved for special colours such as additional variations in increments of 25%, or even functions such as fixed patterns or shading.
Unfortunately I would tap this on an iPad, otherwise I would have made some more work from some images.Maybe later, in an update…