In parallel transmission, how are the data bits transmitted?

In parallel transmission, multiple bits of data are transmitted simultaneously across multiple channels or wires. This method stands out because it allows for faster communication compared to serial transmission, where bits are sent one after another.

Using multiple channels means that if you have, for instance, an 8-bit data bus, all 8 bits can be sent at the same time, effectively doubling or tripling the transmission speed, depending on the number of bits being sent. This technique is particularly useful in environments where high-speed data transfer is necessary, such as inside computers where the distance is short, and the use of many wires is feasible.

The other options describe different forms or characteristics of data transmission, but they do not accurately represent the essence of parallel transmission, which is defined by the simultaneous sending of multiple bits.