Gray Scale/Color
The Gray Scale/Color selection verifies that the system can display as many as 16 shades of the gray scale and all 8 possible colors (at 2 intensi- ties for each). A display similar to Screen 7 appears on the monitor.
Noise
The Noise selection checks the amount of elec- tronic noise generated from the video controller; it also tests the ability of the controller to communicate with the system board.
Screen 7.
