What is visual display?

A visual display has a resolution of 1600 x 1200 pixels....?

• A visual display has a resolution of 1600 x 1200 pixels. If the display is updated 60 times per second, what is the average rate at which a pixel must be read from memory?

• Answer:

  Actually since each pixel is updated 60 times per second, that is the rate at which a pixel must be read from memory: 60 times per second. Maybe they mean the rate at which pixelS are read from memory, which would be: 1600 x 1200 = 1,920,000 pixels x 60 = 115,200,000 pixels per second