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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.
ProBook 440 G4 [82] 2.5 4 GB 1000 HDD 14 1366 x 768 1.64 ProBook 450 G4 [83] 2.5 8 GB 15.6 1920 x 1080 2.04 ProBook 455 G4 [84] AMD A6-9210 2.4 Radeon R5 Graphics 15.6 2.08 ProBook 470 G4 [85] Intel Core i7-7500U 2.7 NVIDIA GeForce 930MX 256 SSD 17.3 2.77 Intel HD Graphics 620 ProBook 640 G4 [86] Intel Core i5-8250U 4 1.6 14 1.73 ProBook 645 G4 ...
The PowerBook G4 is a series of notebook computers manufactured, marketed, and sold by Apple Computer between 2001 and 2006 as part of its PowerBook line of notebooks. The PowerBook G4 runs on the RISC-based PowerPC G4 processor, designed by the AIM (Apple/IBM/Motorola) development alliance and initially produced by Motorola.
Low power consumption. Depending on the set display brightness and content being displayed, the older CCFT backlit models typically use less than half of the power a CRT monitor of the same size viewing area would use, and the modern LED backlit models typically use 10–25% of the power a CRT monitor would use. [149]