What is the difference of UART and USART communication
Options:
(a) they are the names of the same particular thing, just the difference of A and S is there in it
(b) one uses asynchronous means of communication and the other uses synchronous means of communication
(c) one uses asynchronous means of communication and the other uses synchronous and asynchronous means of communication
(d) one uses angular means of communication and the other uses linear means of communication
