The refresh rate (most commonly the "vertical refresh rate", "vertical scan rate" for CRTs) is the number of times in a second that a display hardware draws the data. This is distinct from the measure of frame rate in that the refresh rate includes the repeated drawing of identical frames, while frame rate measures how often a video source can feed an entire frame of new data to a display.
For example, most movie projectors advance from one frame to the next one 24 times each second. But each frame is illuminated two or three times before the next frame is projected using a shutter in front of its lamp. As a result, the movie projector runs at 24 frames per second, but has a 48 or 72 Hz refresh rate.
On CRT displays, increasing the refresh rate decreases flickering, thereby reducing eye strain. However, if a refresh rate is specified that is beyond what is recommended for the display, damage to the display can occur.
For computer programs or telemetry, the term is also applied to how frequently a datum is updated with a new external value from another source (for example; a shared public spreadsheet or hardware feed).
Refresh is to upgrade and reestablish a whole or portion of a program. This could mean a programmed computer interface, an event, or a mind frame, brain or mind map. Refresh is to restore a program to a fresh platform.
Refresh is also known as clearing, cleaning, and creating.
Read more about Refresh Rate: Cathode Ray Tubes, Liquid Crystal Displays, Computer Displays, Stereo Displays, Televisions, Displaying Movie Content On A TV, Computer Data and Telemetry
Famous quotes containing the words refresh and/or rate:
“There are women in middle life, whose days are crowded with practical duties, physical strain, and moral responsibility ... they fail to see that some use of the mind, in solid reading or in study, would refresh them by its contrast with carking cares, and would prepare interest and pleasure for their later years. Such women often sink into depression, as their cares fall away from them, and many even become insane. They are mentally starved to death.”
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