OLED uses organic matter in it's creation Which causes the screen to turn yellow on some spots where white colour is displayed more. While apple's new MICROLED uses inorganic matter (gallium nitrite) it lasts longer then OLED and also doesn't burn to yellow. and it can have much more brightness while using less power.
UWP ( Universal windows programs ) Microsoft newest way to limit developers. What is basically does is it that it remove a lot of workload from the developer's side. Think how much code they have to write to support their app or software on every device , different code for PC's and different code for android.
UWP solves this problem by acting as a translator for each device. Means you only have to write code once it'll adjust itself depending upon the device. Whether it's a phone , tablet , PC or Xbox they'll all share the same code. And if you want a device specific feature then you can label that part of the code.
You guessed it right there's a catch, how can there not be ? It's Microsoft we're talking about here😂 it only works if you have a Microsoft developed operating system. If it's a PC then you gotta have windows. If it's phone then you gotta have windows phone,same deal with tablet and if it's a Xbox well Xbox is Xbox.