eli5: how does vga, dvi,hdmi, displayport,usb control each pixel of a monitor if the cable doesn’t seem to have a wire for each and every pixel?
In: Technology
The cable is carrying a mostly serial signal…it’s not sending data for every pixel at once, it’s sending one or several pixels at a time (but so fast that the monitor can draw the whole display 60+ times per second).
It’s like how we can read a novel despite only looking at one page at a time…we read the pages in sequence and then we have the whole novel.
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