For some people , a smartphone and a laptop are essential to the work they do . But that means buying 2 devices .

And for some people , a Smartphone and a Laptop and a Tablet are essential to the work they do .  But that means buying 3 devices or multiple devices .  They carry a lot of devices ( and a lot of chargers ) . It is an expensive purchase , it is an expensive investment  for sure , but if the people can afford , why not .

Fortunately , if we have  a  [ Laptop/tablet/smartphone(all-in-one) with built-in DVD-RW player ]    machine that I envisioned ,  like for example  the   [ 15.6 inches  Touchscreen  " 360 degrees foldable "  INTEL-based  Linux  5G  Cellular Laptop with built-in DVD-RW Player ]  which can serve as a Laptop , which can serve as a Tablet , and above all , which can also operate like a  Smartphone ,  we shouldn't have to buy 3 devices , we shouldn't have to buy multiple devices , we shouldn't have 3 chargers.  We only buy 1 device . We only carry 1 device .   We only need one device and we only subscribe to one Cellular Data Plan .          

WE WANT TO KEEP IT SIMPLE ON THE ROAD . 

This  1 device  will be our  Smartphone , our  Laptop , our  Tablet ,  our camera ,  our map , our  weather  report/forecast ,  our flashlight [ 1 ] , our music player , our alarm , our translator , our Office/Tech Tools ,  our  [ Laptop/Tablet/Smartphone(ALL-in-ONE) ]  machine ,  which we can use for study , work , play , education  and  entertainment .