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H.264 allows for one, two, or more than two previously decoded pictures as references during decoding, and can have any arbitrary display-order relationship relative to the picture(s) used for its prediction. The heightened flexibility of information retrieval means that B-frames typically require fewer bits for encoding than either I or P-frames.
On devices like modems, bytes may be more than 8 bits long because they may be individually padded out with additional start and stop bits; the figures below will reflect this. Where channels use line codes (such as Ethernet , Serial ATA , and PCI Express ), quoted rates are for the decoded signal.
Thus, a representation that compresses the storage size of a file from 10 MB to 2 MB yields a space saving of 1 - 2/10 = 0.8, often notated as a percentage, 80%. For signals of indefinite size, such as streaming audio and video, the compression ratio is defined in terms of uncompressed and compressed data rates instead of data sizes:
For a CRT, the gamma that relates brightness to voltage is usually in the range 2.35 to 2.55; video look-up tables in computers usually adjust the system gamma to the range 1.8 to 2.2, [1] which is in the region that makes a uniform encoding difference give approximately uniform perceptual brightness difference, as illustrated in the diagram at ...
However, the console's optical drive operated at a speed multiplier of 2× (9 MB/s). In contrast, the Xbox 360 utilized standard dual-layer DVDs with a capacity of 8.5 GB, and its optical drive ran at a 12× speed multiplier (16.5 MB/s). This meant that the Xbox 360 could deliver data transfer rates approximately 85% faster than the PlayStation ...
The laptop came with 12 GB of RAM—more than adequate to run Microsoft Office Word, Excel and Powerpoint. The HDD is 256GB and expandable to 1TB. The screen is crisp and clean looking and the ...
The processor includes an up to 400 MHz 256-bit core, supporting up to 10.6 GB/s memory bandwidth with DDR2-667 system RAM, up to 224 MB max. video memory through DVMT scheme, 1.6 GPixels/s and 1.6 GTexels/s fill rate, a max. resolution of 2048x1536 for both analog and digital displays, 2 SDVO ports for flat-panels and/or TV-Out via ADD2 cards ...
f.lux (pronounced "flux") is a cross-platform computer program that adjusts a display's color temperature according to location and time of day, offering functional respite for the eyes. The program is designed to reduce eye strain during night-time use, helping to reduce disruption of sleep patterns. [2] [3]