Types of communication - long form

Explain the differences between the ways in which parallel and serial communication is carried out. 

Describe two reasons why serial transmission might be preferred to parallel transmission.

Explain what asynchronous data transmission is.

Apart from the widespread availability of USB ports, explain why peripherals usually use serial a communication method such as USB instead of parallel communication?

A system sends data over a long distance using serial communication, explain why serial communication is more appropriate in this instance than parallel communication.

The figure shows a byte of data being transmitted along a serial link using even parity. Write in the missing values for the start bit, the parity bit and the stop bit.