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Serial Data Transfer:
bit rate = number of bits per second
BAUD rate = number of bits per second
NRZ line code = a format for transmitting information bits. “NRZ” stands for NonReturn-to-Zero
ASCII coding = a seven bit encoding scheme for numerals, letters, and common characters
parity bit = an extra bit set or cleared to make the sum of the bits of a code even or odd, as required.
There are many variations of serial data transfer in terms of protocol and physical signal specifications. This subject is too broad to be discussed in this short course. Detailed description of various serial data communication will be studied in another short course. A very brief introduction to serial data transfer is given here.