(A) refresh rate
(B) resolution
(C) pitch
(D) bandwidth
Ans. (A) Refresh Rate
The Refresh rate is the number of times a display's image is repainted or refreshed per second. As it denotes a frequency of a process, the refresh rate is expressed in hertz. That is, a refresh rate of 75 Hz means the image is refreshed 75 times in one second.
In Cathode Ray Tubes (CRTs), the refresh rate is regulated by the vertical synchronous signal produced by the video controller, which directs the monitor to focus the electron gun on the leftmost top edge of the raster, ready to paint the image. The refresh rate depends upon the monitor's resolution and its maximum horizontal scan rate, as higher resolution necessitates more scan lines per second. Increased refresh rates reduce flickering and thereby reduce eye strain for a viewer. Because of this, it is advisable to purchase monitors that have a flicker rate between 75 and 85 Hz.
(B) resolution
(C) pitch
(D) bandwidth
Ans. (A) Refresh Rate
The Refresh rate is the number of times a display's image is repainted or refreshed per second. As it denotes a frequency of a process, the refresh rate is expressed in hertz. That is, a refresh rate of 75 Hz means the image is refreshed 75 times in one second.
In Cathode Ray Tubes (CRTs), the refresh rate is regulated by the vertical synchronous signal produced by the video controller, which directs the monitor to focus the electron gun on the leftmost top edge of the raster, ready to paint the image. The refresh rate depends upon the monitor's resolution and its maximum horizontal scan rate, as higher resolution necessitates more scan lines per second. Increased refresh rates reduce flickering and thereby reduce eye strain for a viewer. Because of this, it is advisable to purchase monitors that have a flicker rate between 75 and 85 Hz.
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