Network bandwidth refers to the maximum amount of data that can be transmitted over a network connection in a given amount of time, usually measured in bits per second (bps). Higher bandwidth allows for faster data transfer, enabling activities like streaming videos, downloading files, and online gaming to occur more smoothly. Bandwidth is often compared to a highway: a wider highway can accommodate more cars at once, just as higher bandwidth can support more data traffic. Factors such as network congestion, hardware limitations, and the type of connection (like fiber optics or Wi-Fi) can affect the actual speed experienced by users.