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MacOS Big Sur
MacOS Big Sur, also known as macOS 11, is an operating system for Macintosh computers released by Apple in November 2020, the first to run on Apple's own silicon.
MacOS Catalina
MacOS Catalina (version 10.15) is the 2019 Mac operating system release that replaced iTunes with Music, Podcasts, and TV apps and dropped 32-bit app support.
MacOS Golden Gate
MacOS Golden Gate (version 27) is the twenty-third major release of Apple's Mac operating system, released in 2026 and the first macOS not to run on Intel Macs.
MacOS High Sierra
MacOS High Sierra (version 10.13) is Apple's Mac operating system released as a free update on September 25, 2017, focusing on the APFS file system, Metal 2 graphics, and HEVC video.
MacOS Mojave
macOS Mojave (version 10.14) is the fifteenth major release of Apple's Mac desktop operating system, announced in June 2018 and released that September with Dark Mode, Stacks, and Continuity Camera.
MacOS Monterey
MacOS Monterey, also known as macOS 12, is Apple's Mac operating system released on October 25, 2021, with features like Live Text and Safari tab groups.
MacOS Sequoia
MacOS Sequoia, also known as MacOS 15, is the twenty-first major release of Apple's Mac operating system, announced in June 2024 and released that September with iPhone Mirroring and Apple Intelligence.
MacOS Sierra
MacOS Sierra, also known as OS X 10.12, is the thirteenth major release of Apple's Mac operating system, released free in 2016 and best known for bringing Siri to the Mac.
MacOS Sonoma
macOS Sonoma, also known as macOS 14, is the twentieth major release of Apple's Mac operating system, released as a free update on September 26, 2023.
MacOS Tahoe
MacOS Tahoe, also known as MacOS 26, is the twenty-second major release of Apple's macOS operating system, announced in June 2025 and released that September as a free update.
MacOS Ventura
MacOS Ventura, also known as macOS 13, is the nineteenth major release of Apple's Mac operating system, released free in October 2022 for Apple silicon and Intel Macs.
MacOS version history
The macOS version history covers Apple's desktop operating system, formerly Mac OS X and OS X, from its first release in 2001 through macOS Tahoe 26.
MacPherson strut
The MacPherson strut, also called MacPherson suspension, is an independent suspension combining a shock absorber inside a coil spring, first used in production by Ford around 1950.
Macro (computer science)
A macro, used in macroing, is a compile-time rule that rewrites program text or syntax into new code; textual C preprocessor macros and syntactic Lisp, Scheme, and Rust macros are the main families.
Macro-fiber composite
A macro-fiber composite (MFC) is a flexible piezoelectric patch actuator and sensor developed at NASA's Langley Research Center in 1999, originally for helicopter blades and aircraft wings.
Macro-operation fusion
Macro-operation fusion, also known as macro-op fusion or macrofusion, is a technique where a processor merges adjacent instructions like a compare and branch into one micro-op.
Macrocell
A macrocell is a high-power base station site in a cellular mobile network providing wide-area coverage, radii of 1 to 30 kilometers, contrasted with low-power small cells.
Macromedia
Macromedia, Inc. was an American software company formed in 1992 and known for the Flash platform and Dreamweaver web editor, which Adobe acquired in 2005 for $3.4 billion.
Macromedia Flash 8
Macromedia Flash 8 is a web animation and application authoring tool released by Macromedia in September 2005 in Basic and Professional editions, alongside Flash Player 8.
Macroscopic fundamental diagram
The macroscopic fundamental diagram (MFD), or network fundamental diagram, relates vehicle accumulation in an urban network to its trip completion rate, confirmed empirically in Yokohama in 2008.
Macroscopic traffic flow model
A macroscopic traffic flow model describes road traffic as a continuum using aggregated variables like flow, density, and mean speed, treating traffic as a compressible fluid.
MACsec
MACsec, or Media Access Control Security, is the IEEE 802.1AE standard, first published in 2006, that encrypts and authenticates Ethernet frames link by link between neighboring devices.
MACSURF
MacSurf (MacSurf 2.3 "OPEN TABS") is a free GPLv2 NetSurf-fork web browser for PowerPC Mac OS 8.6–10.6, with native TLS 1.3 via macTLS and ES2023 JavaScript via macQJS, no proxy.
Mactan–Cebu International Airport
Mactan–Cebu International Airport, also known as Cebu Airport, serves Lapu-Lapu City and Cebu in the Philippines and is the country's second busiest airport after Manila.
Macuahuitl
The macuahuitl was a Mesoamerican wooden club edged with obsidian blades, serving as a short cutting sword and the main hand weapon of Aztec Eagle and Jaguar warriors.
Macy's Herald Square
Macy's Herald Square is the flagship department store of Macy's, occupying a full block in Midtown Manhattan. Opened in 1902, it was the world's largest department store from 1924 until 2009.
Mad Dog Field
Mad Dog is a deepwater oil and gas field in the Gulf of Mexico, discovered in 1998 and operated by bp, with production starting in 2005.
Madaotou Coal Mine
Madaotou Coal Mine (马道头煤矿) is an underground coal mine in Zuoyun County, Datong, Shanxi, China, run by Datong Coal Mine Group and opened in 2017 with 10 million tonnes annual capacity.
Madden Dam
Madden Dam is a concrete dam on the Chagres River in Panama, built by the United States from 1931 to 1935 to supply water and power for the Panama Canal.
Made by Google
Made by Google is Google's annual consumer hardware launch event, first held in 2016, at which it unveils new Pixel devices and products built around its AI software.