The reason I say this is because  a   [15.6 inches  Chrome OS  Laptop/Tablet/Smartphone (ALL-in-ONE) with  built-in        DVD-RW Player ]  ,  regardless  whether it looks like a  "foldable 360 degrees Laptop" ,  or  a   "detachable Laptop" ,  this  All-in-ONE  machine  can be a  Laptop and a Tablet and a  Smartphone  and this  All-in-ONE  machine can also be use with a    mouse/keyboard   or  without  a    mouse/keyboard .