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Definition: The term bandwidth has a number of technical meanings but since the popularization of the Internet, it has generally referred to the volume of information per unit of time that a transmission medium (like an Internet connection) can handle.

Here's a quick analogy: Data is to available bandwidth as water is to the size of the pipe. In other words, as the bandwidth increases, so does the amount of data that can flow through in a given amount of time, just like as the size of the pipe increases, so does the amount of water that can flow through during a period of time.

An Internet connection with a larger bandwidth can move a set amount of data (say, a video file) much faster than an Internet connection with a lower bandwidth. You can test your bandwidth availability for free using tools available at Internet speed test sites.

"My Internet Service Provider said that the maximum upload/download bandwidth of my cable Internet connection should be around 4 Mbps / 30 Mbps."
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