bandwidth

bandwidth: The data transfer capacity of a transmission medium.

In digital communications, the transfer capacity expressed in bits per second (bps) or megabits per second (Mbps). For example, Ethernet accommodates a bandwidth of 10,000,000 bps or 10 Mbps.

In analog communications, the difference between the highest and lowest frequencies in a specific range. For example, an analog telephone line accommodates a bandwidth of 3,000 hertz (Hz), the difference between the lowest (300 Hz) and highest (3,300 Hz) frequencies that it can carry.