4K (computer virus)
4k is a computer virus which infects COM files and EXE files. The virus was one of the first to employ stealth tactics. Infected systems will hang, after September 22 every year, which is also the date of birth Bilbo Baggins, a character from "The Lord of the Rings". The code was intended to display the message "Frodo Lives", but hangs in all known variants.
16K resolution
The term 16K resolution (8640p) refers to a display resolution that has 15360 horizontal pixels by 8640 vertical pixels, for a total of 132.7 megapixels. It has four times as many pixels as 8K resolution, sixteen times as many pixels as 4K resolution and sixty-four times as many pixels as 1080p resolution.