a data transmission rate; the maximum amount of information (bits/second) that can be transmitted along a channel
"The video call kept freezing because my internet bandwidth was too slow to handle high-definition streaming."
The width, usually measured in hertz, of a frequency band.
"The engineer adjusted the radio transmitter to ensure its bandwidth matched the required 200-hertz range for clear audio transmission."
In plain English: Bandwidth is the maximum amount of data that can be sent over an internet connection at once.
"The company needs to upgrade its internet bandwidth because so many people are downloading files at once."
Usage: In everyday conversation, bandwidth refers to the amount of data a communication channel can transmit at once, not the physical width of a radio frequency range. Use this term when discussing internet speed or network capacity rather than technical signal measurements.
The word bandwidth is a straightforward combination of the words band and width. It was first used to describe the range of frequencies that could be transmitted through a communication channel.