eli5: What is bandwidth?
In: 48
Bandwidth as defined in signal processing:
It’s the frequency range a system can use. The more frequencies, the higher the bandwidth. As an analogy, compare a [Low Bandwidth](https://d1aeri3ty3izns.cloudfront.net/media/31/316735/1200/preview.jpg) vs [High Bandwidth](https://keyboardkraze.com/wp-content/uploads/2020/03/Organs.jpg.webp) keyboard.
Bandwidth as defined in data transfer:
It’s the total amount of data (or the number of data packets) that can be sent in a given time. The more data/packets, the higher the bandwidth. Again, to use an analogy, if data packets were bullets, a [musket](https://www.youtube.com/watch?v=SJMbxZ1k9NQ) would be low bandwidth, an [M134](https://www.youtube.com/watch?v=vfRpiem7yps) high bandwidth.
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