Serial communication is basically the transmission or reception of data one bit at a time.
Today's computers generally address data in bytes or some multiple thereof.
A byte contains 8 bits.
A bit is basically either a logical 1 or zero.
Every character on this page is actually expressed internally as one byte.
The serial port is used to convert each byte to a stream of ones and zeroes as well as to convert a streams of ones and zeroes to...
preview:
http://www.wcscnet.com/Tutorials/SerialComm/Page1.htm
1/13/2009