title: Is it better to convert strings to byte, then bytes to strings when data sent through network, and why?
body: <p>I have interest in socket programming, and i saw a couple of sources convert data to bytes before those lasts sent through network and when it received  it converted back to it's first shape!
  Why so? is it better or faster to send bytes instead of strings or the data itself?
  I'm really confused about this as didn't find enough info on the web about it, or is that a networking thing, and if so i will be grateful if you link me to a subject explains in detail,
  sorry for my limited language as I'm not native, and thanks in advanced </p>