All articles starting with O
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OpenText
OpenText, also known as Open Text Corporation, is a Canadian information management software company founded in 1991 as a University of Waterloo spin-off, headquartered in Waterloo, Ontario.
OpenTitan
OpenTitan is an open source silicon root of trust project providing secure boot and key management, launched in 2019 by Google, Western Digital, and others, and stewarded by lowRISC.
Opentrons
Opentrons is a laboratory automation company whose open-source liquid-handling robots, the benchtop OT-2 and the modular Opentrons Flex, automate routine pipetting work in biology labs, controlled through a Python API and open-source software.
OpenTTD
OpenTTD is a free, open source (GPLv2) transport simulation game reimplementing Chris Sawyer's 1995 Transport Tycoon Deluxe, begun by Ludvig Strigeus in 2002, released 2004, with multiplayer, larger maps, and NewGRF modding; since March 2026 on Steam it ships only in a $9.99 bundle with Atari's TTD re-release.
OpenType
OpenType is a font file format for digital typography, developed jointly by Microsoft and Adobe Systems and announced in 1996 as a successor to TrueType and PostScript Type 1.
OpenUSD
OpenUSD, also known as Universal Scene Description (USD), is an open-source Pixar format for 3D scene composition, released in 2016 and used in film and robotics simulation.
OpenVAS
OpenVAS (Open Vulnerability Assessment System) is an open-source vulnerability scanner forked from Nessus in 2006. It is the scan engine of the Greenbone Vulnerability Management framework.
Openview Venture Partners
OpenView Venture Partners is a Boston venture capital firm founded in 2006 by Scott Maxwell to invest in expansion-stage business software companies, known for coining product-led growth.
OpenVINO
OpenVINO, short for Open Visual Inference and Neural Network Optimization, is Intel's open-source toolkit for deploying fast deep learning inference on Intel hardware, announced in 2018.
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.
Openwater
Openwater is a San Francisco medtech startup founded in 2016 by Mary Lou Jepsen that develops portable medical devices combining infrared optical imaging with low-intensity focused ultrasound therapy.
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
Opera (オペラ): sung theater in which music carries the drama, originating in Florence with Peri and Rinuccini's Dafne (1597); distinct from musicals by being entirely sung, with a history running through Venice's first public opera house (1637) to modern houses like the Met.
Opera (site)
Opera Casino (Казино Опера) is a large land-based casino in central Minsk, Belarus, inside the Beijing Hotel, run by Gaming Group XO LLC under license 33120/644; distinct from the unrelated Anjouan-licensed online casino opera.casino.
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 company
An opera company is an organization that stages opera, requiring a large specialized workforce: director, conductor, designers, orchestra, chorus, and principal singers. Companies like Opera Australia rank among the largest performing arts employers.
Opera festival
An opera festival is a concentrated summer season of opera staged at a distinctive venue or town, from Glyndebourne's country house and Savonlinna's medieval castle to Salzburg's city-wide festival.
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 house
Opera house: a purpose-built theater for staged opera combining playhouse staging with concert-hall acoustics; from Venice's Teatro San Cassiano (1637) to Shanghai's 4,200-seat Snøhetta house.
Opera house block
An opera house block was a mixed-use American small-town building with a performance hall above street-level storefronts, built on the Great Plains from about 1870 to 1920.
Opera houses by country
Opera houses by country is an overview of opera houses worldwide, from the first public house in Venice by 1637 to the largest, the 3,816-seat Metropolitan Opera in New York.
Opera houses in other European countries
Opera houses in other European countries is a survey of Europe's principal opera houses, covering Spain's Teatro Real and Liceu, Scandinavia, and Central and Eastern Europe.