Philips 58 Inch 58PUS8105 Smart 4K UHD LED Ambilight TV

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

58 may refer to:

• 58 (number)
• one of the years 58 BC, AD 58, 1958, 2058
• 58 (band), an American rock band
• 58 (golf), a round of 58 in golf
• "Fifty Eight", a song by Karma to Burn from the album Arch Stanton, 2014
• 58 Concordia, a main-belt asteroid

The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to 1/36 yard or 1/12 of a foot. Derived from the Roman uncia ("twelfth"), the word inch is also sometimes used to translate similar units in other measurement systems, usually understood as deriving from the width of the human thumb.

Standards for the exact length of an inch have varied in the past, but since the adoption of the international yard during the 1950s and 1960s the inch has been based on the metric system and defined as exactly 25.4 mm.

Koninklijke Philips N.V. (lit. 'Royal Philips'), commonly shortened to Philips, is a Dutch multinational conglomerate corporation that was founded in Eindhoven in 1891. Since 1997, its world headquarters have been situated in Amsterdam, though the Benelux headquarters is still in Eindhoven. Philips was once one of the largest consumer electronics companies in the world, but later focused on health technology, having divested its other divisions.

The company was founded in 1891 by Gerard Philips and his father Frederik, with their first products being light bulbs. Philips employs around 80,000 people across 100 countries. The company gained its royal honorary title (hence the Koninklijke) in 1998 and dropped the "Electronics" in its name in 2013, due to its refocusing on healthcare technology.

Philips is organized into three main divisions: Personal Health (formerly Philips Consumer Electronics and Philips Domestic Appliances and Personal Care), Connected Care, and Diagnosis & Treatment (formerly Philips Medical Systems). The lighting division was spun off as a separate company, Signify N.V.

The company started making electric shavers in 1939 under the Philishave and Norelco brands, and post-war it developed the Compact Cassette, an audiotape format, and co-developed the compact disc format with Sony, as well as numerous other technologies. As of 2012, Philips was the largest manufacturer of lighting in the world as measured by revenue.

Philips has a primary listing on the Euronext Amsterdam stock exchange and is a component of the Euro Stoxx 50 stock market index. It has a secondary listing on the New York Stock Exchange. Acquisitions included Signetics and Magnavox. It also founded a multidisciplinary sports club called PSV Eindhoven in 1913.