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The flicker of a CRT monitor can cause various symptoms in those sensitive to it such as eye strain, headaches [9] in migraine sufferers, and seizures in epileptics. [10]As the flicker is most clearly seen at the edge of our vision there is no obvious risk in using a CRT, but prolonged use can cause a sort of retinal shock where the flickering is seen even when looking away from the monitor.
Burn-in on a monitor, when severe as in this "please wait" message, is visible even when the monitor is switched off. Screen burn-in, image burn-in, ghost image, or shadow image, is a permanent discoloration of areas on an electronic visual display such as a cathode-ray tube (CRT) in an older computer monitor or television set.
In software design, the blinking twelve problem [1] is when features in software or computer systems are rendered unusable to most users by the complexity of the interface to them. The usage emanates from the 'clock' feature provided on many VCRs manufactured in the late 1980s or early 1990s. The clock could be set by using a combination of ...
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In 2012, Acer introduced the new Aspire M3 of the Timeline Ultra family [5] The Acer Aspire Timeline Ultra series is slim and light, just 20 mm thin. It has a 15.6-inch display and weighs less than five pounds.
[112] [115] [116] Other features of HDMI 2.0 include support for the Rec. 2020 color space, up to 32 audio channels, up to 1536 kHz audio sample frequency, dual video streams to multiple users on the same screen, up to four audio streams, 4:2:0 chroma subsampling, 25 fps 3D formats, support for the 21:9 aspect ratio, dynamic synchronization of ...
A literal flashing arrow is used occasionally, such as in the 1981 film Student Bodies to mock it as a cliché. [3] This is mentioned in Everything Bad Is Good for You , where the authors says works that have little use of this and require figuring things out yourself have a more deductive viewer base.
Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." [ 1 ] It is a disorientation -, vertigo -, and nausea -inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves .