Google Android

Google Android
Name	Google Android
Developer	Google (company)
Initial release	September 2008
Latest release	Android 14
Programming language	Java, Kotlin, C++
License	Apache License 2.0, proprietary components
Kernel	Linux kernel
Website	google.com/android

Google Android Android is a mobile operating system for touchscreen devices developed by Google (company), powering smartphones, tablets, wearables, televisions, and automotive systems. It integrates a Linux-based kernel with system libraries and application frameworks to support a broad ecosystem of device manufacturers, network operators, app developers, and chipmakers. Android has influenced the mobile industry alongside rivals such as Apple Inc., Microsoft, and BlackBerry Limited.

History

Android's origins trace to the startup Android Inc., co-founded by Andy Rubin, Rich Miner, Nick Sears, and Chris White; the company was acquired by Google (company) in 2005. Early development intersected with projects at Open Handset Alliance members including HTC Corporation, Samsung Electronics, LG Electronics, Qualcomm, and Intel. The first commercial device, the HTC Dream, launched with carrier partner T-Mobile (United States), entering a market dominated by platforms such as Symbian, BlackBerry OS, and Windows Mobile. Android's expansion involved partnerships with handset makers like Motorola Mobility and Sony Mobile, and carriers such as Verizon Communications and Vodafone Group. Strategic milestones include introduction of the Android Market (later Google Play), the formation of AOSP contributors, acquisition of companies like Motorola Mobility, and legal disputes with firms including Oracle Corporation, Nokia, and Huawei. Android's growth paralleled events like the rise of Mobile Internet, the launch of 4G LTE networks, and regulatory scrutiny by bodies such as the European Commission and United States Department of Justice.

Architecture

Android's architecture centers on a modified Linux kernel providing drivers and low-level services, middleware libraries such as Bionic (C library), and runtime environments like the Android Runtime (ART). The system frameworks expose APIs used by applications developed with Java (programming language), Kotlin (programming language), or native code in C++. Hardware abstraction layers connect to chipsets from vendors such as Qualcomm, MediaTek, Samsung Electronics (Exynos), and Huawei (Kirin). Device manufacturers implement Board Support Packages originally standardized by groups like the Open Handset Alliance and influenced by projects such as AOSP. For app distribution and services, Android integrates with Google Play Services, which interacts with cloud platforms like Google Cloud Platform and identity systems such as Firebase. Containerization and sandboxing draw on concepts from SELinux and Linux namespaces, while boot and update mechanisms reference standards from UEFI and OTA (over-the-air) updates practices used by vendors including Sony Mobile and OnePlus.

Features and User Interface

Android's user experience includes a home screen, application launcher, status bar, notifications, and soft navigation keys, competing with interfaces from iOS by Apple Inc. Custom skins and launchers are provided by manufacturers like Samsung Electronics (One UI), Xiaomi (MIUI), Huawei (EMUI), and aftermarket projects such as LineageOS. Core features include multitasking, widgets, intents for inter-app communication, and accessibility services from organizations such as the World Wide Web Consortium (W3C) guidelines. Multimedia support leverages codecs standardized by groups like MPEG and hardware acceleration from vendors including ARM Holdings. Voice interaction and assistant features integrate with services such as Google Assistant and compete with offerings from Amazon (company) and Microsoft's Cortana. Android also supports form factors and platforms such as Android TV devices from Sony Corporation, wearables through Wear OS partnered with Fossil Group, and automotive deployments via Android Automotive used in models by Volvo Cars and Polestar.

Versioning and Releases

Android's release cadence evolved from confectionery-themed names (Cupcake, Donut, Éclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich, Jelly Bean, KitKat, Lollipop, Marshmallow, Nougat, Oreo, Pie) to numerical identifiers for versions like Android 10, Android 11, Android 12, Android 13, and Android 14. Each release introduced APIs and platform changes governed by Android Compatibility Definition Document and compatibility testing conducted by entities including CTS contributors and OEM partners such as Samsung Electronics and Google (company)'s own Pixel line. Major updates have coincided with events like Google I/O and product launches for devices from Google (company), OnePlus Technology, Samsung Electronics' Galaxy series, and reference implementations by Essential Products and Nokia (company). Distribution of updates involves relationships with carriers such as AT&T and regional regulators like National Telecommunications and Information Administration in the United States.

Market Share and Distribution

Android holds significant global smartphone market share alongside iOS; major markets include countries like India, China, United States, Brazil, and Indonesia. Device manufacturers distributing Android include Samsung Electronics, Xiaomi, OPPO, Vivo, Realme, Motorola Mobility, and Sony Mobile. App distribution is dominated by Google Play, but alternatives such as Amazon (company)'s Appstore, Huawei's AppGallery, and independent stores like F-Droid serve certain regions. Carrier partnerships affect distribution in markets served by Verizon Communications, China Mobile, and Deutsche Telekom. Android's open-source model has fostered forks and projects like LineageOS, vendor forks by Amazon (company) (Fire OS), and institutional deployments in organizations such as NASA and academic programs at universities like Massachusetts Institute of Technology.

Security and Privacy

Android's security model uses application sandboxing, permission systems, and platform hardening with technologies like SELinux and Verified Boot. Security patches are distributed via monthly updates and Project initiatives such as Android Security Bulletin and collaborations with vendors like Qualcomm and Samsung Electronics. Notable security incidents involved vulnerabilities disclosed by researchers from organizations such as Kaspersky Lab, Google Project Zero, and CERT Coordination Center. Privacy controls have evolved under regulatory regimes including the General Data Protection Regulation (GDPR) and oversight by authorities like the European Data Protection Board. Third-party security solutions from companies like McAfee and Symantec (now part of Broadcom Inc.) extend protection, while platform initiatives support features like Private Compute Core and per-app permission toggles.

Developers and Ecosystem

Android's developer ecosystem encompasses tools such as Android Studio, based on IntelliJ IDEA; build systems like Gradle; and languages including Java (programming language), Kotlin (programming language), and native development with C++. App monetization and analytics integrate with services such as Google Play Console, AdMob, Firebase, and third-party platforms like Unity Technologies and Epic Games. Developer communities and conferences include Google I/O, Droidcon, and training from organizations like Coursera and Udacity. Open-source projects and contributors include AOSP, LineageOS, and independent maintainers hosted on GitHub and GitLab. The ecosystem intersects with standards and initiatives led by bodies like the Open Handset Alliance and engages with regulatory frameworks involving agencies such as the Federal Trade Commission.

Category:Mobile operating systems