ted:
The first line I know.
Baud rate it is not related with frequency ?
In serial communication we have 5V pulses with some frequency ?
Well a 57.6kHz square wave would be 115200 baud as there are 115200 transitions per second,
but we don't talk of frequency for digital baseband, that's reserved for analog signals or modulated
carriers.
Baud rate is defined as the symbol transitions per second, not bits per second.