ATI V7350 User Guide - Page 62

Pixel, Refresh Rate, Rendering, Resolution, pixels designed to appear that way.

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Page 62 highlights

56 Pixel All computer images are made up of tiny dots. Each individual dot is called a pixel, a word created from the term "picture element." A pixel is the smallest indivisible unit of a digital image and can be only a single color. The size of the pixel depends on how the display resolution has been set. The smallest size a pixel can be is determined by the display's dot pitch, which is measured in millimeters (mm). Refresh Rate Also referred to as "vertical refresh rate." This is the rate at which a monitor or television can redraw the screen from top to bottom. NTSC television systems have a refresh rate of approximately 60 Hz whereas computer displays typically have refresh rates of 75 Hz or more. At refresh rates of 70 Hz and lower, screen flicker is often noticeable. Rendering Rendering refers to the final drawing stages where the 2D image that appears on a display is derived from its 3D descriptions. What appears on the display may look three dimensional, but it is really just a 2D grid of pixels designed to appear that way. Resolution The resolution of any display is the number of pixels that can be depicted on screen as specified by the number of horizontal rows against the number of vertical columns. The default VGA resolution of many video cards is capable of displaying 640 rows of pixels by 480 columns. The typical resolution of current displays is set to higher values, such as 1024x768 (XGA), 1280x1024 (SXGA), or 1600x1200 (UXGA).

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56
Pixel
All computer images are made up of tiny dots. Each individual dot is called
a pixel, a word created from the term “picture element.” A pixel is the
smallest indivisible unit of a digital image and can be only a single color.
The size of the pixel depends on how the display resolution has been set.
The smallest size a pixel can be is determined by the display’s dot pitch,
which is measured in millimeters (mm).
Refresh Rate
Also referred to as “vertical refresh rate.” This is the rate at which a monitor
or television can redraw the screen from top to bottom. NTSC television
systems have a refresh rate of approximately 60 Hz whereas computer
displays typically have refresh rates of 75 Hz or more. At refresh rates of
70 Hz and lower, screen flicker is often noticeable.
Rendering
Rendering refers to the final drawing stages where the 2D image that
appears on a display is derived from its 3D descriptions. What appears on
the display may look three dimensional, but it is really just a 2D grid of
pixels designed to appear that way.
Resolution
The resolution of any display is the number of pixels that can be depicted
on screen as specified by the number of horizontal rows against the number
of vertical columns. The default VGA resolution of many video cards is
capable of displaying 640 rows of pixels by 480 columns. The typical
resolution of current displays is set to higher values, such as 1024x768
(XGA), 1280x1024 (SXGA), or 1600x1200 (UXGA).