Bandwidth is the maximum amount of data which can be sent through a network at any given time. The more bandwidth available, the faster a person can do things on the Internet, such as play video games or stream a movie.
It is measured by how much data passes through it in one second. If 4 billion bytes of data gets through, then your network’s bandwidth is 4 gigabytes, or 4Gb.
Think of bandwidth as a water hose. The wider the hose, the more water gets through, and the faster the job of watering the plants gets done.
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