Portal:Technology
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Technology is the application of conceptual knowledge for achieving practical goals, especially in a reproducible way. The word technology can also mean the products resulting from such efforts, including both tangible tools such as utensils or machines, and intangible ones such as software. Technology plays a critical role in science, engineering, and everyday life.
Technological advancements have led to significant changes in society. The earliest known technology is the stone tool, used during prehistoric times, followed by the control of fire, which contributed to the growth of the human brain and the development of language during the Ice Age. The invention of the wheel in the Bronze Age allowed greater travel and the creation of more complex machines. More recent technological inventions, including the printing press, telephone, and the Internet, have lowered barriers to communication and ushered in the knowledge economy. (Full article...)
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Image 1
RateMyCop.com (also stylized RATEMYCOP.com) was a review site that allowed users to give feedback on police officers in the United States. The website contained info on over 300,000 officers obtained through public records, which could be searched through by name, state, or department, in addition to allowing users to comment on and rate officers in regards to professionalism, fairness, and overall satisfaction. The website was started in February 2008 by Gino Sesto and Rebecca Costell, who were inspired by other websites that allowed users to rate their teachers or doctors. The website faced several challenges in its history, including its legality being challenged in the Utah State Senate, losing its domain hosts twice, and a user being arrested for posting on the website.
The website received mixed to negative reception from police officers and their associates, hinging on the danger it could have posed to officers in duty, the possibility of personal information being posted on the website, and the lack of personal accountability for what was posted. Other officers remained unconcerned with it, or even wanted to use it or similar websites as tools for communication with the public. RateMyCop.com has been frequently cited as an example of how Web 2.0 technologies like social computing could affect the transparency of services provided by governments. (Full article...) -
Image 2The Pellissippi Parkway is a major highway in Knox and Blount counties in the Knoxville metropolitan area in Tennessee that extends 19.75 miles (31.78 km) from State Route 62 at Solway to SR 33 in Alcoa. It provides access to the cities of Oak Ridge and Maryville from Interstates 40 and 75 in the western part of Knoxville and also serves a major corridor that includes Oak Ridge National Laboratory, Y-12 National Security Complex, and a number of science and technology firms. The central portion of the Pellissippi Parkway is included in the Interstate Highway System and is designated Interstate 140 (I-140), while the remainder is designated as State Route 162 (SR 162). The entire highway is part of the National Highway System, a national network of roads identified as important to the national economy, defense, and mobility. It takes its name from an older name for the Clinch River of Native American origin.
The Pellissippi Parkway was initially constructed between I-40/I-75 and Solway from 1970 to 1973 in order to improve access between Knoxville and Oak Ridge. A proposal to extend the highway to US 129 arose while the initial section was under construction, and this occurred in multiple segments between 1987 and 1996. The parkway was extended to its current eastern terminus in two sections, which opened in 1996 and 2005, and is currently planned to be extended approximately 4 miles (6.4 km) to US 321. This plan has been the subject of intense community opposition from locals, however, and has been repeatedly delayed as a result. (Full article...) -
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The A7 motorway (Croatian: Autocesta A7) is a 42.4-kilometre-long (26.3 mi) motorway in Croatia. It connects the nation's largest port in Rijeka, to the Croatian motorway network, as well as to the Rupa and Pasjak border crossings to Slovenia. The motorway forms part of a longitudinal transportation corridor in Croatia, and it is a part of European route E61 Villach–Ljubljana–Trieste–Rijeka. The A7 motorway route south of Orehovica interchange, where it also intersects Pan-European corridor Vb, is a part of European route E65.
The A7 motorway runs near a number of Croatian cities and provides access to Učka Nature Park and, indirectly, to numerous resorts in the Istria and Kvarner Gulf regions. The motorway is nationally significant because of its positive economic impact on the cities and towns it connects, and because of its contribution to tourism in Croatia. The importance of the motorway as a transit route will be further increased upon completion of a proposed expansion of the Port of Rijeka and Rijeka transport node. (Full article...) -
Image 4New York State Route 149 (NY 149) is an east–west state highway that runs for 32.20 miles (51.82 km) through the Capital District of New York in the United States. It begins at exit 20 on the Adirondack Northway (Interstate 87 or I-87) in the Warren County town of Queensbury and intersects U.S. Route 9 (US 9), US 4, and NY 22, among other routes, as it progresses eastward to its eastern end at the Vermont state line in the Washington County village of Granville. Here, the highway becomes Vermont Route 149 (VT 149) and continues for an additional 1.302 miles (2.095 km) to an intersection with VT 30 in Rutland County. Both NY 149 and VT 149 traverse mostly rural areas.
NY 149 was assigned in the 1930 renumbering of state highways in New York and initially extended from NY 9L in Queensbury to NY 22 south of Granville by way of an east–west highway built during the first two decades of the 20th century. It was cut back to US 4 c. 1939, but extended westward back to NY 9L in the mid-1950s. It was extended further west to US 9 in the late 1950s and to I-87 exit 20 c. 1962. In the mid-1960s, NY 22 was rerouted to bypass Granville to the west. NY 149 was then extended to Vermont by way of NY 22's former routing into the village and East Main Street. The short continuation of Granville's East Main Street in Vermont, designated as Vermont Route 30B since 1935, was renumbered to VT 149 in December 1966 to match the New York number. (Full article...) -
Image 5M-227 is a 6.834-mile (10.998 km) north–south state trunkline highway in the U.S. state of Michigan. It consists largely of a segment of old U.S. Highway 27 (US 27) along the south and west sides of Marshall. The highway passes the airport and serves an industrial section of town north of the Kalamazoo River. M-227 was created as a part of a program to add additional routes into the state's highway system under the leadership of Governor John Engler. (Full article...)
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Image 6King's Highway 413, known as the GTA West Corridor or GTA West until 2021, is a proposed 400-series highway and bus transitway in the western Greater Toronto Area of the Canadian province of Ontario. The approximately 52-kilometre (32 mi) route is currently undergoing planning and analysis under an environmental impact assessment (EA) by both the Ministry of Transportation of Ontario (MTO) and the Government of Ontario, as well as the Impact Assessment Agency of Canada. If approved, a new four-to-six lane controlled-access highway would be built between the existing interchange of Highway 401 and the 407 ETR at the Halton–Peel boundary, and Highway 400 north of Vaughan. In addition, two new extensions would be built to connect Highway 410 and Highway 427 with Highway 413.
The proposed highway would serve as an outer ring road around the built-up areas of Brampton and Vaughan that would permit traffic travelling between Southwestern Ontario and Ontario's cottage country or Northern Ontario to bypass much of the Greater Toronto Area. However, the highway has attracted criticism for its environmental impacts, including concerns about its footprint on designated farmland in the Greenbelt, and its implications to encourage urban sprawl and induced demand. (Full article...) -
Image 7Maryland Route 68 (MD 68) is a state highway in the U.S. state of Maryland. The state highway runs 18.50 miles (29.77 km) from U.S. Route 40 (US 40) in Clear Spring east to US 40 Alternate in Boonsboro. MD 68 crosses central Washington County to the south of Hagerstown, connecting Clear Spring and Boonsboro with Williamsport, where the highway runs concurrently with MD 63. A small segment of MD 68 west of Boonsboro was constructed around 1920, using as part of the route two early 19th-century stone bridges. The remainder of the highway between Boonsboro and Williamsport was constructed in the second half of the 1920s. MD 68 was extended west from Williamsport to Clear Spring in the mid-1950s. The state highway was relocated south of Williamsport for the construction of Interstate 81 (I-81) in the mid-1960s. Since the early 1990s, I-68 has also existed in Washington County; signs on I-70 aim to avoid confusion between I-68 and MD 68. (Full article...)
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Image 1Photograph: David ShankboneDavid Faiman is an Israeli engineer and physicist recognized for his expertise on solar power. He is the director of the Ben-Gurion National Solar Energy Center and Chairman of the Department of Solar Energy & Environmental Physics at Ben-Gurion University's Jacob Blaustein Institutes for Desert Research in Sde Boker.
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Image 2Image credit: Prolineserver/TomiaThis diagram of four pulley systems illustrates how increasing the number of pulleys increases the mechanical advantage, making the load easier to lift. MA is the factor by which a mechanism multiplies the force put into it. In this diagram, 100 newtons is required to lift the weight off the ground. Each additional pulley increases the MA such that the four-pulley system only needs 25 newtons to accomplish the same task, but the rope must be pulled four times as far.
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Image 3An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors suspended by towers or utility poles.
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Image 4A billet of enriched uranium, which is uranium where the percent composition of uranium-235 (235U) has been increased through the process of isotope separation. Enriched uranium is a critical component for both civil nuclear power generation and military nuclear weapons.
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Image 5Photograph: NASAA self-portrait by the Mars rover Curiosity on October 31, 2012. The mosaic is stitched from a set of 55 images taken by the Mars Hand Lens Imager at "Rocknest," the spot in Gale crater where the mission's first scoop sampling took place. Self-portraits such as this help NASA document the state of the rover and track changes, such as dust accumulation and wheel wear.
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Image 7The Let L-410 Turbolet is a twin-engined short-range transport aircraft, manufactured by the Czech aircraft manufacturer LET, mostly used for passenger transport. The L-410 first flew in 1969, and with more than 1100 produced, is the most popular 19-seat plane in history.
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Image 8The GameCube is a sixth generation video game console released by Nintendo beginning in 2001. Meant as a successor to the Nintendo 64, the GameCube sold approximately 22 million units worldwide. It was the third most-successful console of its generation, behind Sony's PlayStation 2 and Microsoft's Xbox. The GameCube was succeeded by the Wii in 2006.
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Image 9A wheel is a circular component that is intended to rotate on an axial bearing. The wheel is one of the main components of the wheel and axle which is one of the six simple machines.
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Image 10Photo credit: HeptagonA multiple exposure composite image of the implosion of a chimney at the former brewery "Henninger" in Frankfurt am Main, Germany. This controlled demolition technique involves strategically placing explosive material and timing its detonation so that a structure collapses on itself in a matter of seconds, minimizing the physical damage to its immediate surroundings.
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Image 11Photograph: ULPower Aero EnginesThe ULPower UL260i, a flat-four engine produced by ULPower Aero Engines of Belgium. Flat-four engines are flat engines with four cylinders arranged horizontally in two banks of two cylinders on each side of a central crankcase; they can be used in cars, motorcycles, or aircraft. This type of engine tends to be well-balanced and have efficient cooling, but is expensive to manufacture and considerably wider than other engines.
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Image 12Credit: Berthold WernerA telephone, or phone, is a telecommunications device that converts sound, typically the human voice, into electronic signals suitable for transmission via cables or other transmission media over long distances through satellite.
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Image 13Photograph credit: Stefan KrauseThe BMW S1000RR is a sport bike made by BMW Motorrad. It was introduced in 2008, initially for competition in the 2009 Superbike World Championship, and has been in commercial production since then. Powered by a 999 cc (61.0 cu in) four-cylinder engine, redlined at 14,200 rpm, it delivers 133.6 kW (179.2 hp; 181.6 PS) to the rear wheel, making it the most powerful motorcycle in the class. Rubén Xaus and Troy Corser rode the bike for its inaugural Superbike World Championship in 2009, gaining highest finishes of fifth and seventh respectively, but it achieved greater success in the 2010 FIM Superstock 1000 championship season, with rider Ayrton Badovini winning every single race but one on the S1000RR.
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Image 14Photo credit: Hans HillewaertWind turbines belonging to the Thorntonbank Wind Farm located in the North Sea, 28 km (17 mi) off the coast of Belgium. Electricity generation started in early 2009, with an initial capacity of 30 MW, and that number is expected to rise to 300 MW by 2015. A 37 km (23 mi) 150 kV undersea cable connects the wind farm to the shore.
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Image 15Photo credit: Eric PierceThe four-stroke cycle of an internal combustion engine is the cycle most commonly used for automotive and industrial purposes today, including cars, trucks, and generators.
The cycle was invented by Nikolaus Otto in 1876, and is also called the Otto cycle. The cycle is characterized by four strokes, or straight movements in a single direction, of the piston. -
Image 16Diagram: Jeff Dahl
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Image 17Credit: Mike McGregorThe OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries.
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Image 18Photo: IkiwanerAn Agusta A109 rescue helicopter leaves Mount Pilatus, near Lucerne, Switzerland, after recovering a patient. Later renamed AgustaWestland AW109, the A109 is a helicopter manufactured by Agusta (now AgustaWestland) of Italy. It is a light-weight, twin-engine, eight-seat multi-purpose craft.
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Image 19Photo credit: Fir0002The Mazda RX-8 sports car is a front mid-engine, rear-wheel drive four-seat coupé manufactured by Mazda Motor Corporation. It is the successor to the RX-7 and, like its predecessors in the RX range, it is powered by a rotary engine. The RX-8 began North American sales in the 2004 model year.
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Image 20Photograph credit: Langley Research Center; restored by Adam CuerdenMary Jackson (1921–2005) was an African American mathematician and aerospace engineer at the National Advisory Committee for Aeronautics, which was succeeded by NASA in 1958. For most of her career, she worked at Langley Research Center in Hampton, Virginia; starting as a computer at the segregated West Area Computing division, she later took advanced engineering classes and, in 1958, became NASA's first black female engineer.
After 34 years at NASA, Jackson had earned the most senior engineering title available. Realizing that she could not earn further promotions without becoming a supervisor, she accepted a demotion to become a manager of the Federal Women's Program in the NASA Office of Equal Opportunity Programs, as well as of the Affirmative Action Program. In this role, she worked to influence both the hiring and promotion of women in NASA's science, engineering and mathematics careers. She was portrayed by Janelle Monáe as a lead character in the 2016 film Hidden Figures. This picture, taken in 1980, shows Jackson working at NASA Langley.
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General images - load new batch
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Image 1Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
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Image 23D printer (from Emerging technologies)
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Image 4Top 30 AI patent applicants in 2016 (from Emerging technologies)
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Image 6Self-replicating 3D printer (from Emerging technologies)
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Image 7Eric M. C. Tigerstedt (1887–1925) was known as a pioneer of sound-on-film technology. Tigerstedt in 1915. (from Invention)
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Image 10'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
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Image 11The wheel, invented sometime before the 4th millennium BC, is one of the most ubiquitous and important technologies. This detail of the "Standard of Ur", c. 2500 BCE., displays a Sumerian chariot. (from History of technology)
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Image 12A variety of stone tools (from History of technology)
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Image 13A rare 1884 photo showing the experimental recording of voice patterns by a photographic process at the Alexander Graham Bell Laboratory in Washington, D.C. Many of their experimental designs panned out in failure. (from Invention)
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Image 14Edison electric light bulbs 1879–80 (from History of technology)
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Image 18The preserved Rocket (from History of technology)
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Image 19Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)
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Image 23Newcomen steam engine for pumping mines (from History of technology)
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Image 24Agriculture preceded writing in the history of technology. (from History of technology)
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Image 25Thomas Edison with his second phonograph, photographed by Levin Corbin Handy in Washington, April 1878 (from History of technology)
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Image 26Walls at Sacsayhuaman (from History of technology)
Did you know (auto-generated) - load new batch
- ... that Henry E. Sigerist felt "depressed" after reading A History of Science, Technology, and Philosophy in the 16th and 17th Centuries?
- ... that Peter Corby's electric trouser press used technology designed for Concorde?
- ... that Flathead Lake Biological Station can detect invasive aquatic species in real-time using eDNA technology?
- ... that OPTi Inc. won a patent suit against Apple for unauthorized use of "predictive snooping" technology?
- ... that Guy Parmelin, now President of Switzerland, opened the study program of cyber security of the Lucerne School of Information Technology in 2018?
- ... that Thomas Hall made an electric train that received power from the rails on which it travelled instead of onboard batteries, a new technology at the time?
- ... that it was Caltech experimental physicist Rana X. Adhikari's idea to build a gravitational-wave observatory in India?
- ... that Mary Earle was born near Ben Nevis, and although she became a professor of food technology in New Zealand, she never forgot her Scottish roots?
Top 10 WikiProject Technology popular articles of the month
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YouTube is an American online video sharing and social media platform owned by Google. Accessible worldwide, it was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of PayPal. Headquartered in San Bruno, California, United States, it is the second most visited website in the world, after Google Search. YouTube has more than 2.5 billion monthly users, who collectively watch more than one billion hours of videos every day. , videos were being uploaded to the platform at a rate of more than 500 hours of content per minute, and as of 2023, there were approximately 14 billion videos in total. (Full article...) -
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ChatGPT (Chat Generative Pre-trained Transformer) is a chatbot developed by OpenAI and launched on November 30, 2022. Based on a large language model, it enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. Successive prompts and replies, known as prompt engineering, are considered at each conversation stage as a context. (Full article...) -
Image 3Facebook is a social media and social networking service owned by the American technology conglomerate Meta Platforms. Created in 2004 by Mark Zuckerberg with four other Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes, its name derives from the face book directories often given to American university students. Membership was initially limited to Harvard students, gradually expanding to other North American universities. Since 2006, Facebook allows everyone to register from 13 years old (or older), except in the case of a handful of nations, where the age limit is 14 years. , Facebook claimed 3 billion monthly active users. As of October 2023, Facebook ranked as the 3rd most visited website in the world, with 22.56% of its traffic coming from the United States. It was the most downloaded mobile app of the 2010s. (Full article...)
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WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. It allows users to send text, voice messages and video messages, make voice and video calls, and share images, documents, user locations, and other content. WhatsApp's client application runs on mobile devices, and can be accessed from computers. The service requires a cellular mobile telephone number to sign up. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. (Full article...) -
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Elon Reeve Musk (/ˈiːlɒn/; EE-lon; born June 28, 1971) is a businessman and investor. He is the founder, chairman, CEO, and CTO of SpaceX; angel investor, CEO, product architect, and former chairman of Tesla, Inc.; owner, executive chairman, and CTO of X Corp.; founder of the Boring Company and xAI; co-founder of Neuralink and OpenAI; and president of the Musk Foundation. He is one of the wealthiest people in the world, with an estimated net worth of US$190 billion , according to the Bloomberg Billionaires Index, and $195 billion according to Forbes, primarily from his ownership stakes in Tesla and SpaceX. (Full article...) -
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X, commonly referred to by its former name Twitter, is a social media website based in the United States. With over 500 million users, it is one of the world's largest social networks and the fifth-most visited website in the world. Users can share text messages, images, and videos as "tweets". X (Twitter) also includes direct messaging, video and audio calling, bookmarks, lists and communities, and Spaces, a social audio feature. Users can vote on context added by approved users using the Community Notes feature. (Full article...) -
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Google LLC (/ˈɡuːɡəl/ ⓘ, GOO-ghəl) is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial intelligence (AI). It has been referred to as "the most powerful company in the world" and as one of the world's most valuable brands due to its market dominance, data collection, and technological advantages in the field of AI. Google's parent company Alphabet Inc. is one of the five Big Tech companies, alongside Amazon, Apple, Meta, and Microsoft. (Full article...) -
Image 8Artificial intelligence (AI), in its broadest sense, is intelligence exhibited by machines, particularly computer systems, as opposed to the natural intelligence of living beings. It is a field of research in computer science that develops and studies methods and software which enable machines to perceive their environment and uses learning and intelligence to take actions that maximize their chances of achieving defined goals. Such machines may be called AIs. (Full article...)
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Nvidia Corporation (/ɛnˈvɪdiə/, en-VID-ee-ə) is an American multinational corporation and technology company headquartered in Santa Clara, California, and incorporated in Delaware. It is a software and fabless company which designs and supplies graphics processing units (GPUs), application programming interfaces (APIs) for data science and high-performance computing as well as system on a chip units (SoCs) for the mobile computing and automotive market. Nvidia is also a dominant supplier of artificial intelligence (AI) hardware and software. (Full article...) -
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Apple Inc. (formerly Apple Computer, Inc.) is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley. It designs, develops, and sells consumer electronics, computer software, and online services. Devices include the iPhone, iPad, Mac, Apple Watch, Vision Pro, and Apple TV; operating systems include iOS, iPadOS, and macOS; and software applications and services include iTunes, iCloud, Apple Music, and Apple TV+. (Full article...)
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