A 3840x2160 display has 3840 horizontal and 2160 vertical pixels, totaling over 8 million pixels. It's known as 4K UHD, offering sharp and detailed images.
My new 4K TV has a 3840x2160 resolution, making movies incredibly detailed.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.