
1) Data throughput measure
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https://www.crosswordclues.com/clue/bitrate

Measured as 'bits per second,' and used to express the rate at which data is transmitted or processed. The higher the bitrate, the more data is processed and, typically, the higher the picture resolution. Digital video formats typically have bitrates measured in megabits-per-second (Mbps). (One megabit equals one million bits.) The maximum bitrate ...
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http://www.crutchfield.com/S-np170FLGK7y/learn/learningcenter/home/tv_gloss

Bitrate or Bit Rate is the average number of bits that one second of video or audio data will consume. Higher bitrate means bigger file size and generally better video or audio quality while lower bitrate means lower file size but worse video or audio quality. Some bitrate examples in common video and audio files: MP3 about 128 kbps (kilobits per s...
Found on
http://www.videohelp.com/glossary?B

The rate at which the compressed bitstream is delivered from the storage medium to the input of a decoder. See also: Bit, Bitstream.
Found on
https://www.encyclo.co.uk/local/20687
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