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Automatic transmission
An automatic transmission, also called an automatic gearbox, changes a car's gear ratios on its own without a clutch; the first mass-produced unit was GM's 1940 Hydra-Matic.
Automatic transmission fluid
Automatic transmission fluid (ATF) is a specially refined oil that in one fill lubricates gears, transfers power in the torque converter, cools, and controls shifting.
Automatic vectorization
Automatic vectorization, or autovectorization, is a compiler transformation that analyzes loops and rewrites them to use SIMD instructions without source changes; it is built into GCC, LLVM, and Intel compilers.
Automatic Warning System
The Automatic Warning System (AWS) is the British railway cab-warning system, national on the UK main line since the 1950s, that brakes a train if its driver ignores a signal warning.
Automatic watch
An automatic watch, also called a self-winding watch, is a mechanical watch in which a swinging rotor winds the mainspring as the wearer's wrist moves, so no battery is needed.
Automatic weather station
An automatic weather station is a set of meteorological instruments that measures surface weather variables and transmits the data without an observer on site, serving remote locations.
Automatic writing
Automatic writing: text produced with reported loss of conscious control or authorship. Practiced by Surrealist poets from 1924, used in Victorian spirit mediumship, and studied via hypnosis, dissociation, and ideomotor mechanisms.
Automatic1111
Automatic1111, formally the Stable Diffusion web UI, is an open-source Python browser interface for generating and editing Stable Diffusion images, released on GitHub in 2022 and now in maintenance mode.
Automatic1111 WebUI
Automatic1111 WebUI, commonly A1111, is a free open-source web interface for running Stable Diffusion image generation locally, built on Gradio; its last release came in July 2024.
Automatica (trade fair)
Automatica is a trade fair for smart automation and robotics held every two years at the Trade Fair Center Messe München in Munich since 2004, drawing about 49,000 visitors and 800 exhibitors in 2025.
Automatically switched optical network
An automatically switched optical network (ASON) is an optical transport network whose control plane sets up, modifies, and restores connections automatically without manual provisioning, standardized by ITU-T G.8080 since 2001.
Automaticon
Automaticon is the International Automation and Measurements Fair, Poland's largest industrial automation and robotics trade fair, held in Warsaw since 1995 with over 1,000 firms from 24 countries.
Automation
Automation, also called automated control systems, is the use of self-operating technology to run processes with minimal human intervention; coined at Ford in the late 1940s, it now spans factories, infrastructure, offices, and services.
Automation Anywhere
Automation Anywhere is a San Jose, California software company founded in 2003 by Mihir Shukla, offering an enterprise platform combining robotic process automation, generative AI, and agentic automation.
Automation surprise
An automation surprise is an event in which cockpit automation behaves differently from what the pilot expects, usually because the pilot has lost track of the automation's mode.
AutomationML
AutomationML (Automation Markup Language) is an open, vendor-neutral, XML-based data exchange format for engineering information in industrial automation, initiated by Daimler in 2006 and standardized in the IEC 62714 series.
Automatische treinbeïnvloeding
Automatische treinbeïnvloeding (ATB) is the national automatic train protection system of the Netherlands, which automatically brakes trains that exceed the permitted speed or fail to slow down.
Automatism
Automatism: involuntary, unconscious mechanical behavior, from 19th-century reflex physiology and psychological automatisms (Myers, Janet, de Clérambault) to epileptic automatisms (ICD-11 MB45.1) and the sane versus insane automatism defense in criminal law.
Automatix
Automatix Incorporated was an American robotics and machine vision company founded in 1980 in Billerica, Massachusetts, known for vision-guided arc welding robots and inspection systems.
Automatkarbin 24
Automatkarbin 24 (Ak 24) is the standard 5.56×45 mm assault rifle of the Swedish Armed Forces, a Swedish variant of the Finnish Sako M23 that replaces the AK5.
Automatkarbin 4
Automatkarbin 4 (Ak 4) is a Swedish license-built version of the Heckler & Koch G3 battle rifle, adopted in 1964 and still used by the Home Guard.
Automaton
An automaton is a mechanical object that operates itself once set in motion, including clockwork figures that write or play music, and theoretical machines in computer science.
Automattic
Automattic is an American software company founded in 2005 by Matt Mullenweg, co-creator of WordPress, and headquartered in San Francisco. It owns WordPress.com, WooCommerce, and Tumblr.
AutoMeKin
AutoMeKin, formerly named tsscds, is an open-source program that discovers chemical reaction mechanisms automatically, using molecular dynamics to find transition states and Monte Carlo simulations for kinetics.
Automixis
Automixis: asexual reproduction in which diploidy is restored from products of a single meiosis, via central fusion, terminal fusion, or gamete duplication; distinct from apomixis and selfing, found in animals, plants, and fungi.
Automobile Association
The Automobile Association (AA) is a British motoring organization founded in London in June 1905 to warn drivers of police speed traps, best known for roadside assistance, with over 14 million members.
Automobile Club de l'Ouest
The Automobile Club de l'Ouest (ACO), founded in 1906 in Le Mans, is a French motoring organization best known for creating and organizing the 24 Hours of Le Mans.
Automobile Club of Southern California
The Automobile Club of Southern California is a nonprofit AAA motor club founded in Los Angeles in 1900, headquartered in Costa Mesa with more than 7 million members.
Automobile Dacia
Automobile Dacia is a Romanian car manufacturer at Mioveni that has built vehicles under the Dacia brand since 1968 and has been owned by Renault since 1999.
Automobile drag coefficient
The automobile drag coefficient, or car drag coefficient, is a dimensionless number expressing a vehicle's aerodynamic resistance, typically about 0.3 for passenger cars and central to fuel economy and electric range.