I will be most grateful if someone can help me out with the following query:
I understand that a modem sends data a bit at a time (supports the transmission and reception of a serial bit stream). I also understand that a modem, in order to achieve higher bit rates, tends to use modulation techniques that encode more than 1 bit in the signal (ie 2 bits per baud). So, does this mean that a modem doesn't always send data serially? (ie if it's sending 4 bits per baud, is it sending 4 bits at a time?)
Thank you very much in advance for helping me out.