title: Serial port handshake. What the difference between Hardware and None handshaking?
body: <p>I'm trying to determine the difference when I open <strong>serial port</strong> with <strong>hardware handshake</strong> and <strong>none handshake</strong>.</p>
  
  <p>It seems that in both cases I have to control <code>RTS/CTS</code> signals (just tested it with one COM device). 
  So what the difference between opening serial port with hardware handshake and without handshaking?</p>
  
  <p>From my previous understanding, when we work <code>without handshaking</code>, we don't care about <code>RTS/CTS</code> and <code>DTR/DSR</code> signals. Just send and receive data whenever we want. Was I wrong? </p>
  
  <p>One more question. Can we work <code>without handshaking</code> in <code>full duplex</code> mode only?</p>