VIZIO 65″ Class 4K UHD Quantum Smartcast Smart TV HDR P-Series P65Q9-H1

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

65 may refer to:

• 65 (number)
• One of the years 65 BC, AD 65, 1965, 2065
• 65 (film), a 2023 American science fiction thriller film
• The atomic number of terbium, a chemical element
• A type of dish in Indian cuisine, such as Chicken 65, Gobi 65, or Paneer 65
• 65 Cybele, a main-belt asteroid

P, or p, is the sixteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is pee (pronounced ), plural pees.

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.