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.
Xite 4K (Canada)
XITE 4K is a Canadian English language Category B television channel owned by XCAN Networks Inc. The channel broadcasts music videos in 4K resolution (ultra-high-definition television) from current popular music artists from various genres including pop, dance, hip-hop, and more.