| The capacity a network or data connection has for carrying data. For analog transmission, bandwidth is the difference between the upper and lower transmission frequencies in a given range. It is measured in cycles per second or Hz (hertz). For digital transmission, bandwidth is measured in (bps) bits per second, and the larger the bandwidth number, the faster the digital transmission. This speed is important for I/O (input/output) devices because a bus with a low bandwidth could restrain a faster I/O device from performing at full capacity. |