Toshiba's high-res 3,840 x 2,160 laptop should arrive by back-to-school season

And just like that, 2K screens are old news. While other companies announce laptops with 2,560 x 1,440 screens, Toshiba is doing the competition one better: the outfit is showing off a notebook with a 15.6-inch, 3,840 x 2,160 display. Dubbed the ...