Explain the working of VRAM.
The working process of the VRAM is that the user selects the image and sent it to display command, then the first processor read it and then writes the processing program on VRAM, and then VRAM converts the data by a RAM digital-to-analogue converter (RAMDAC) into analogue signals.
Lastly, Cathode Ray Tube present in the display presentation mechanism shows final the output of the image.