Final answer:
The capacity of a communication channel is measured in bandwidth, which is the range of frequencies able to be transmitted, usually measured in bits per second.
Step-by-step explanation:
The capacity of a communication channel is measured in bandwidth. The term bandwidth refers to the range of frequencies that a communication channel can transmit. It is often measured in bits per second (bps) and is a key factor in determining how much data can be sent over a network at any given time. For example, a wireless router with a bandwidth of 75 Mbps can transmit data at a rate of 75 million bits per second.
Each bit is a binary unit of data transmission, constituting either a one or a zero. The bit capacity is the total number of bits that can be transmitted over a network. The band rate or baud rate is a measure of the number of signal changes or symbols that are transmitted per second. Data flow, on the other hand, refers to the actual movement of data through a network.