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OpenVINS
OpenVINS is an open-source C++ platform for visual-inertial estimation research from the University of Delaware, released in 2019. Its Extended Kalman filter fuses camera and IMU data to recover motion.
OpenVLA
OpenVLA is a 7-billion-parameter open-source vision-language-action model for robot manipulation, released in June 2024 and trained on 970,000 real-robot trajectories from the Open X-Embodiment dataset.
OpenVMS
OpenVMS, also known as DEC VMS, is a proprietary multiuser operating system created by Digital Equipment Corporation in 1977 for its VAX computers, still in development.
OpenVoice
OpenVoice is an open-source instant voice-cloning model family created by MyShell, first deployed in May 2023, that replicates a speaker's tone color from a short audio clip.
OpenVPN
OpenVPN is an open-source virtual private network protocol and software suite, started by James Yonan in 2001, that creates encrypted tunnels over standard TCP and UDP internet transports.
OpenVSLAM
OpenVSLAM is an open-source visual SLAM framework, introduced in 2019, that estimates a camera's trajectory and builds sparse maps from monocular, stereo, and RGB-D video.
OpenWebText
OpenWebText is an open-source text corpus created in 2019 by Brown University students Aaron Gokaslan and Vanya Cohen as a public reproduction of OpenAI's WebText for GPT-2.
OpenWorm
OpenWorm is an open-source project founded in 2011 to simulate the roundworm Caenorhabditis elegans cell by cell, so its behavior emerges from its 302 simulated neurons.
OpenWrt
OpenWrt is a highly extensible GNU/Linux distribution for embedded devices, typically wireless routers, with a writable filesystem, package management, and a web interface, started in 2004 from the Linksys WRT54G GPL sources.
Opera (web browser)
Opera, also known as Opera browser, is a Chromium-based web browser begun in 1994 at Norwegian telecom Telenor, known for its ad blocker, free VPN, and gamer edition Opera GX.
Opera Aria
Opera Aria is a free generative AI assistant built into the Opera web browser, announced in May 2023 in collaboration with OpenAI and available on desktop and mobile platforms.
Opera glasses
Opera glasses, also called theater binoculars or theater glasses, are small, low-magnification binoculars for viewing indoor performances such as opera and theater, first produced commercially in 1823.
Opera Mini
Opera Mini is a mobile web browser developed by Opera Software, announced in 2005, that renders pages on remote servers to cut mobile data use by up to 90%.
Operating system
An operating system is software that manages a computer's resources, arbitrating access to the CPU, memory, devices, and storage so programs run securely, portably, and efficiently.
Operating temperature
Operating temperature is the range of temperature within which a device is specified to function correctly. For electronics it may refer to ambient, case, or junction temperature.
Operation Aphrodite
Operation Aphrodite was a secret 1944 US Army Air Forces program converting war-weary B-17 bombers into radio-controlled flying bombs; no drone ever destroyed its target.
Operation Black Buck
Operation Black Buck, known as the Black Buck raids, was a series of seven long-range RAF Avro Vulcan bombing raids on Port Stanley airport in the 1982 Falklands War.
Operation Bodenplatte
Operation Bodenplatte, also known as Unternehmen Bodenplatte, was a failed Luftwaffe attack on Allied airfields on 1 January 1945 during the Battle of the Bulge.
Operation Castle
Operation Castle was a 1954 US series of six thermonuclear test detonations at Bikini and Enewetak atolls, ranging from 110 kilotons to 15 megatons in yield.
Operation Catechism
Operation Catechism was a World War II British air raid conducted on November 12, 1944. Royal Air Force Lancasters sank the German battleship Tirpitz at her mooring off Håkøya island.
Operation Chastise
Operation Chastise, known as the Dambusters Raid, was a Royal Air Force bombing attack on the night of 16/17 May 1943 in which No. 617 Squadron breached the Möhne and Eder dams in Germany.
Operation Chengiz Khan
Operation Chengiz Khan, also known as Operation Genghis Khan, was a pre-emptive night strike by the Pakistan Air Force on Indian airbases and radars on 3 December 1971.
Operation Chrome Dome
Operation Chrome Dome, also known as CHROME DOME, was a Cold War program in which US nuclear-armed B-52 bombers flew continuous airborne alert patrols from 1961 to 1968.
Operation Crossroads
Operation Crossroads was a pair of 1946 nuclear tests at Bikini Atoll testing atomic bomb effects on warships; the underwater Baker shot sank nine ships.
Operation Deliberate Force
Operation Deliberate Force, or Deliberate Force, was a NATO air campaign against Bosnian Serb targets in August and September 1995, launched after the Sarajevo marketplace mortar strike.
Operation Fishbowl
Operation Fishbowl was the US Department of Defense's 1962 high-altitude nuclear test series in the Johnston Island area, part of Operation Dominic I, with five rocket-launched shots.
Operation Frantic
Operation Frantic was a series of seven American shuttle-bombing raids against Axis targets that landed at Soviet airfields in Ukraine between June and September 1944.
Operation Grapple
Operation Grapple was a series of nine British nuclear weapons tests in 1957 and 1958 at Malden and Christmas Islands in the Pacific, proving Britain's hydrogen bomb.
Operation Hailstone
Operation Hailstone, or the Battle of Truk, was a two-day US Navy carrier attack on Truk Lagoon in February 1944 that wrecked Japan's major Central Pacific base.
Operation Hannibal
Operation Hannibal (Unternehmen Hannibal) was the German navy's 1945 evacuation of East Prussia by sea, called the largest naval evacuation in history, costing over 20,000 lives.