What is asynchronous communication?

The important thing with asynchronous communication is the fact that since it is time-based, the transmitter and the receiver both have to be very accurately timed so that the receiver can properly decode each of these bits in a byte of data. The length of each of those bits basically determines the data rate in bits per second. Normal devices talk somewhere between 9600 bps and 115.2 kbps. If you’ve ever wondered about that little connector on the back of your computer, it’s async communications.

Watch I/O in a Minute: Asynchronous Communications
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