VIZIO 50″ Class 4K UHD LED Quantum Smart TV HDR M6x-Series M506x-H9

4K, 4-K or 4k may refer to:

• 4000 (number)
• Four kibibytes (4 × 1024 bytes, better written 4 KiB)
  • 4K disk sector size (Advanced Format)
  • 4K demoscene compo, a computer art competition using programs limited to 4 kibibytes
  • The Java 4K Game Programming Contest
• 4K resolution, a collective term for digital video formats having a horizontal resolution of approximately 4,000 pixels
  • 4K UHDTV, an ultra-high-definition television format
• 4K, the IATA airline code for Askari Aviation
• 4K, an alternative name for Cuatro Cabezas (Four Heads), an Argentine multimedia production company.
• 4K, model of Toyota K engine
• 4K, the production code for the 1976 Doctor Who serial The Brain of Morbius
• 4KScore test for prostate cancer screening
• Kenn Borek Air, a Canadian airline IATA code

50 may refer to:

• 50 (number)
• one of the following years 50 BC, AD 50, 1950, 2050
• .50 BMG, a heavy machine gun cartridge also used in sniper rifles
• .50 Action Express, a large pistol cartridge commonly used in the Desert Eagle
• .50 GI, a wildcat pistol cartridge
• .50 Beowulf, a powerful rifle cartridge used in the AR-15 platform
• .50 Alaskan, a wildcat rifle cartridge
• 50 Cent, an American rapper
• Labatt 50, a Canadian beer
• Fifty (film), a 2015 film
• "The Fifty", a group of fifty airmen murdered by the Gestapo after The Great Escape in World War II
• 50 (Rick Astley album), 2016
• 50 (Chris de Burgh album), 2024
• Benjamin Yeaten, widely known by his radio call sign "50", a Liberian military and mercenary leader
• "Fifty", a song by Karma to Burn from the album V, 2011
• 50 Virginia, a main-belt asteroid
• Audi 50, a supermini hatchback
• Dodge Ram 50, a compact pickup truck sold in the United States as a rebadged Mitsubishi Triton

H9, H09 or H-9 can refer to:

• H9 (bus route), a Huntington Area Rapid Transit bus route in Suffolk County, New York
• H9 Groveway, a road in the Milton Keynes grid road system
• H-09 (Michigan county highway)
• British NVC community H9, a type of heath community in the British National Vegetation Classification
• DSC-H9, a 2007 Sony Cyber-shot H series camera
• Highway H09 (Ukraine), a road in Ukraine
• HMS Acasta (H09), a 1929 British Royal Navy A class destroyer
• HMS H9, a 1915 British Royal Navy H class submarine
• HMS Rotherham (H09), a 1942 British Royal Navy R class destroyer
• London Buses route H9
• PRR H9, an American 2-8-0 steam locomotive model
• USS H-9 (SS-152), a 1918 United States Navy H class submarine
• Haval H9, a Chinese SUV
• Hongqi H9, a Chinese luxury car

and also :

• the IATA code for Pegasus Airlines, a Turkey-based airline
• Halloween (2007 film), the 9th film in the Halloween film series

In physics, a quantum (pl.: quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. Quantum is a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents. The fundamental notion that a property can be "quantized" is referred to as "the hypothesis of quantization". This means that the magnitude of the physical property can take on only discrete values consisting of integer multiples of one quantum. For example, a photon is a single quantum of light of a specific frequency (or of any other form of electromagnetic radiation). Similarly, the energy of an electron bound within an atom is quantized and can exist only in certain discrete values. Atoms and matter in general are stable because electrons can exist only at discrete energy levels within an atom. Quantization is one of the foundations of the much broader physics of quantum mechanics. Quantization of energy and its influence on how energy and matter interact (quantum electrodynamics) is part of the fundamental framework for understanding and describing nature.

Smart may refer to a high level of intelligence or "street smarts".

"Smart" or SMART may also refer to the following.