Операционная система windows открытая система

Windows 7 — одна из самых популярных операционных систем, разработанная компанией Microsoft. Однако не все знают, что существуют версии этой ОС с открытым программным кодом, которые предоставляют пользователям возможность изменять исходный код программы под свои нужды и требования.

Открытый программный код (Open Source) — это концепция разработки программного обеспечения, в которой исходный код программы распространяется свободно и доступен для изменений и распространения. Это дает пользователям возможность участвовать в развитии и совершенствовании программного продукта. В случае с операционной системой Windows 7, открытый программный код предоставляет ряд преимуществ для пользователя.

Во-первых, благодаря открытому программному коду, пользователи могут адаптировать операционную систему Windows 7 под свои нужды и требования. Они могут изменять функциональность, добавлять новые возможности и исправлять ошибки. Это позволяет создавать более стабильные и оптимизированные системы, которые соответствуют индивидуальным потребностям пользователей.

Во-вторых, открытый код операционной системы Windows 7 способствует развитию сообщества разработчиков и повышению качества программного обеспечения. Пользователи могут сотрудничать, обмениваться опытом и вносить свой вклад в развитие системы. Это позволяет быстрее находить и исправлять ошибки, а также внедрять новые функции и улучшения.

Использование операционной системы Windows 7 с открытым программным кодом предоставляет пользователям независимость и контроль над своей системой. Это позволяет создавать индивидуальные решения и реализовывать свои идеи. Компания Microsoft продолжает развивать и поддерживать эту версию операционной системы, основываясь на отзывах и вкладе сообщества пользователей и разработчиков.

Таким образом, открытый программный код операционной системы Windows 7 дает пользователям свободу выбора и возможность улучшать и адаптировать систему под свои потребности. Это отличная возможность для опытных пользователей и разработчиков, которые стремятся создать оптимизированную и уникальную операционную систему.

Содержание

Что такое открытый программный код?
Понятие и принципы открытого программного кода
Преимущества и недостатки открытого программного кода
Что такое операционная система Windows 7?
Основные характеристики и функциональные возможности Windows 7
Почему Windows 7 не является открытым программным кодом?

Что такое открытый программный код?

Программное обеспечение с открытым исходным кодом предоставляет возможность пользователям не только использовать программу, но и вносить свои изменения в код. Это позволяет участвовать в ее разработке, исправлять ошибки, добавлять новые функции или адаптировать программу под свои нужды.

В отличие от программного обеспечения с закрытым исходным кодом, где исходный код обычно является коммерческой тайной и доступен только для ограниченного круга разработчиков, открытый программный код стимулирует развитие сообщества разработчиков, которые могут взаимодействовать друг с другом, делиться знаниями и обменяться опытом. Это создает условия для быстрого и качественного развития программного обеспечения.

Открытый программный код позволяет также повысить безопасность программы, так как каждый человек может проверить код на наличие уязвимостей и предложить исправления. Кроме того, данный подход способствует принятию программного обеспечения в открытых стандартах, что позволяет избежать зависимости от единственного вендора и увеличивает совместимость и доступность программ для пользователя.

Примером операционной системы с открытым программным кодом является GNU/Linux, который является альтернативным вариантом для Windows 7. Разработка операционной системы Windows 7 в открытом формате позволит разработчикам и пользователям вносить свои изменения, улучшать безопасность и функциональность системы, а также создавать совместимые приложения для нее.

Понятие и принципы открытого программного кода

Основными принципами открытого программного кода являются:

Свободный доступ к исходному коду. Пользователи имеют возможность получить полный исходный код программного продукта и изучить его. Это позволяет обеспечить независимость от поставщика программного обеспечения и самостоятельно вносить изменения и доработки.

Свобода использования и распространения. Лицензии открытого программного кода предоставляют пользователю право свободно использовать программу, а также распространять ее и создавать на ее основе производные работы. Это позволяет демократизировать доступ к программному обеспечению и поддерживает развитие сообщества разработчиков.

Общественный контроль и участие. Открытый программный код предполагает активное участие сообщества разработчиков и пользователей в процессе разработки. Это способствует высокому качеству программного обеспечения, поскольку любой может внести свой вклад в его улучшение, обнаружить и исправить ошибки.

Равноправие и открытость. Все участники сообщества имеют равные права и доступ к процессу разработки. Это способствует созданию прозрачной и открытой среды, где идеи и знания могут свободно обмениваться.

Принципы открытого программного кода широко применяются в современной разработке программного обеспечения. Например, многие операционные системы, включая Linux и Android, основаны на открытом коде. Они позволяют пользователям получать пользу от программного обеспечения, свободно распространять его и вносить изменения в соответствии с их потребностями.

Преимущества и недостатки открытого программного кода

Преимущества:

1. Возможность проверки безопасности: Благодаря открытому программному коду, любой желающий может изучать код операционной системы и находить уязвимости в его безопасности. Это способствует более оперативному обнаружению и исправлению потенциальных угроз, что делает систему более надежной.

2. Разнообразие разработчиков: Благодаря доступу к исходному коду, разрабатывать приложения и плагины под операционную систему могут разработчики со всего мира. Это способствует появлению большого количества качественных и разнообразных программ, которые удовлетворяют потребности различных пользователей.

3. Гибкость настройки: Открытый программный код позволяет пользователям настраивать операционную систему под свои потребности. Они могут вносить изменения в код, удалять ненужные функции или добавлять новые, создавая персонализированный интерфейс и оптимизируя работу системы.

Недостатки:

1. Сложность использования: Открытый программный код требует определенных знаний и навыков для работы с ним. Пользователям, не владеющим программированием, может быть сложно разобраться в коде и вносить изменения или исправлять ошибки.

2. Ответственность за ошибки: Поскольку любой пользователь может вносить изменения в исходный код операционной системы, возникает вероятность появления ошибок, которые могут негативно сказаться на стабильности и безопасности системы. Кроме того, разработчики несут ответственность за исправление этих ошибок.

3. Разделенность сообщества разработчиков: Открытый программный код может привести к появлению множества вариантов источников кода и веток разработки, что может привести к разделенности сообщества разработчиков и затруднить координацию и совместную работу.

Что такое операционная система Windows 7?

Windows 7 предлагает удобный и интуитивно понятный интерфейс, который позволяет пользователям эффективно работать на компьютере. Она предоставляет широкий набор функций и возможностей, включая богатую графику, поддержку множества программ и устройств, а также высокую стабильность и безопасность.

Среди основных особенностей Windows 7 можно выделить следующие:

Панель задач: в Windows 7 появилась новая панель задач, которая позволяет быстро переключаться между открытыми программами и окнами. Также он предлагает функцию Windows Aero Peek, которая позволяет пользователю быстро просмотреть содержимое окна, минимизировав его.
Улучшенная поддержка жестов: Windows 7 поддерживает множество жестов, таких как перемещение окон, увеличение и уменьшение масштаба, прокрутка и другие. Это делает работу с компьютером более удобной и эффективной.
Безопасность и защита данных: в Windows 7 были внедрены новые механизмы безопасности, которые помогают защитить компьютер от вредоносных программ и злоумышленников. Также операционная система предлагает функции автоматического резервного копирования и шифрования данных.
Улучшенная поддержка мультимедиа: Windows 7 предлагает широкий набор функций для работы с мультимедийными файлами, включая поддержку аудио и видео форматов, интеграцию с популярными программами и устройствами, а также возможность создания и редактирования мультимедийного контента.
Поддержка современных технологий: Windows 7 предлагает поддержку последних технологий, включая 64-разрядные процессоры, сенсорные экраны, графические ускорители и другие. Это позволяет использовать операционную систему на современных компьютерах и устройствах.

Windows 7 является надежной и универсальной операционной системой, которая обеспечивает комфортное и безопасное использование компьютера.

Основные характеристики и функциональные возможности Windows 7

1. Улучшенная производительность:

Windows 7 предлагает улучшенную производительность по сравнению с предыдущими версиями операционной системы. Он имеет оптимизированную работу с ресурсами компьютера, что позволяет более эффективно использовать процессор, память и дисковое пространство.

2. Улучшенная система безопасности:

Windows 7 предоставляет многочисленные инструменты и функции для обеспечения безопасности компьютера и данных пользователя. Он включает в себя брандмауэр, антивирусные программы, антиспам-фильтры и другие инструменты, которые помогают защитить систему от вредоносных программ и хакерских атак.

3. Улучшенная система управления файлами и папками:

Windows 7 предлагает более удобную систему управления файлами и папками. Он включает в себя набор инструментов и функций, таких как «Библиотеки», которые позволяют пользователям легко организовать и находить файлы и папки.

4. Удобный интерфейс и навигация:

Windows 7 имеет удобный и интуитивно понятный интерфейс, который обеспечивает легкую навигацию по системе. Он включает в себя «Пуск» с функциями поиска и быстрого доступа к программам, а также панель задач, которая позволяет быстро переключаться между открытыми приложениями.

5. Расширенные возможности мультимедиа:

Windows 7 предлагает расширенные возможности мультимедиа, включая поддержку широкого спектра аудио- и видеоформатов. Это позволяет пользователям воспроизводить и создавать мультимедийный контент с высоким качеством.

6. Улучшенные возможности сетевого взаимодействия:

Windows 7 обладает улучшенными возможностями сетевого взаимодействия, что облегчает работу с сетями и обмен данными. Он поддерживает различные типы сетей, включая проводные и беспроводные, а также обеспечивает удобный доступ к сетевым ресурсам.

7. Расширенные возможности работы с жесткими дисками:

Windows 7 предлагает расширенные возможности работы с жесткими дисками, включая функцию резервного копирования и восстановления данных, а также поддержку технологий RAID.

Все эти характеристики и функциональные возможности делают Windows 7 одной из наиболее популярных операционных систем, широко используемой пользователями по всему миру.

Почему Windows 7 не является открытым программным кодом?

Проприетарная лицензия, применяемая к Windows 7, ограничивает пользователей в свободном доступе к исходному коду операционной системы. Это означает, что обычные пользователи не имеют права просматривать, изменять или перераспространять код Windows 7 безо внесения изменений в такую лицензию, что требует специальных соглашений и разрешений от Microsoft.

Конфиденциальность и защита интересов компании Microsoft являются ключевыми причинами, по которым Windows 7 не разделяет свой исходный код. Открытие кода может создать угрозу конфиденциальности, а также предоставить возможности злоумышленникам в поиске уязвимостей, которые могут быть использованы для атак на операционную систему.

Несмотря на то, что Windows 7 не является открытым программным кодом, Microsoft предоставляет разработчикам и пользователям набор инструментов и ресурсов для разработки и настройки операционной системы в соответствии с их требованиями и потребностями. Компания также выпустила последующие версии операционной системы, такие как Windows 10, которые предлагают новые функции и улучшения для пользователей и разработчиков.

Источник

Windows Core OS — платформа операционной системы с открытым исходным кодом, превосходящая AOSP. Как вы знаете, Windows 10 — это «служба», а это означает, что это версия, которая будет непрерывно совершенствоваться с течением времени. Он будет получать обновления функций каждые полгода. Основная поддержка заканчивается в 2020 году, а расширенная поддержка заканчивается в 2025 году.

Microsoft Windows, операционная система с закрытым исходным кодом, оказалась под давлением Linux с открытым исходным кодом. Точно так же Microsoft Office, пакет офисных приложений с закрытым исходным кодом, подвергся критике со стороны OpenOffice, пакета с открытым исходным кодом (который является основой StarOffice от Sun).

Windows 10 — это серия операционных систем, разработанных Microsoft и выпущенных как часть семейства операционных систем Windows NT. Это преемник Windows 8.1, выпущенный почти двумя годами ранее, выпущенный в производство 15 июля 2015 года и широко выпущенный для широкой публики 29 июля 2015 года.

Операционная система Windows 10 бесплатна?

Microsoft позволяет любому бесплатно загрузить Windows 10 и установить ее без ключа продукта. В обозримом будущем он будет работать, только с небольшими косметическими ограничениями. И вы даже можете заплатить за обновление до лицензионной копии Windows 10 после ее установки.

Какая из них — операционная система с открытым исходным кодом?

В основе большинства операционных систем с открытым исходным кодом сегодня лежит ядро Linux. Linux обеспечивает ядро этих операционных систем, ядро, которое взаимодействует с аппаратным обеспечением компьютера, и было разработано Линусом Торвальдсом в 1991 году. Создатель ядра Linux Линус Торвальдс.

Есть ли бесплатная операционная система?

Remix OS, созданная на основе проекта Android-x86, полностью бесплатна для загрузки и использования (все обновления также бесплатны — так что здесь нет никаких проблем). … Haiku Project Haiku OS — это операционная система с открытым исходным кодом, предназначенная для персональных компьютеров.

Какая альтернатива Windows 10?

Лучшие альтернативы Windows 10

Ubuntu.
Android.
Apple iOS.
Ред Хэт Энтерпрайз Линукс.
ЦенОС.
Apple OS X Эль-Капитан.
макОС Сьерра.
Федора.

Какая версия Windows 10 самая быстрая?

Windows 10 S — самая быстрая версия Windows, которую я когда-либо использовал — от переключения и загрузки приложений до загрузки, она заметно быстрее, чем Windows 10 Home или 10 Pro, работающая на аналогичном оборудовании.

Какая версия Windows 10 лучше?

Windows 10 — какая версия вам подходит?

Windows 10 Домашняя. Скорее всего, это издание будет наиболее подходящим для вас. …
Windows 10 Профессиональная. Windows 10 Pro предлагает все те же функции, что и домашняя версия, а также предназначена для ПК, планшетов и устройств 2-в-1. …
Windows 10 Mobile. …
Windows 10 Корпоративная. …
Windows 10 Mobile Корпоративная.

Какая версия Windows 10 лучше всего подходит для ПК младшего класса?

Если у вас есть проблемы с медленной работой с Windows 10 и вы хотите что-то изменить, вы можете попробовать более раннюю 32-битную версию Windows, а не 64-битную. Лично я считаю, что Windows 10 Home 32 bit будет раньше Windows 8.1, которая почти такая же с точки зрения требуемой конфигурации, но менее удобна для пользователя, чем W10.

Где я могу скачать Windows 10 бесплатно полную версию?

Полная версия Windows 10 скачать бесплатно

Откройте браузер и перейдите на сайт insider.windows.com.
Щелкните «Начать работу». …
Если вы хотите получить копию Windows 10 для ПК, щелкните ПК; если вы хотите получить копию Windows 10 для мобильных устройств, нажмите «Телефон».
Вы получите страницу с заголовком «Подходит ли это мне?».

21 июн. 2019 г.

Как я могу бесплатно установить Windows 10 на свой новый компьютер?

Если у вас уже есть Windows 7, 8 или 8.1, программное обеспечение / ключ продукта, вы можете бесплатно перейти на Windows 10. Вы активируете его с помощью ключа от одной из старых операционных систем. Но обратите внимание, что ключ может использоваться только на одном ПК одновременно, поэтому, если вы используете этот ключ для новой сборки ПК, любому другому ПК, на котором запущен этот ключ, не повезет.

Выпускает ли Microsoft Windows 11?

Microsoft выбрала модель выпуска двух обновлений функций в год и почти ежемесячных обновлений для исправлений ошибок, исправлений безопасности и улучшений для Windows 2. Никакой новой ОС Windows не будет. Существующая Windows 10 будет обновляться. Следовательно, Windows 10 не будет.

Каковы преимущества операционной системы с открытым исходным кодом?

Вот некоторые фундаментальные преимущества, которые, на мой взгляд, предлагает открытый исходный код по сравнению с проприетарными решениями:

ГИБКОСТЬ И ПОДВИЖНОСТЬ. …
СКОРОСТЬ. …
ЭКОНОМИЧНОСТЬ. …
ВОЗМОЖНОСТЬ НАЧАТЬ С МАЛОГО. …
НАДЕЖНАЯ ИНФОРМАЦИОННАЯ БЕЗОПАСНОСТЬ. …
ПРИВЛЕКАЙТЕ ЛУЧШИЙ ТАЛАНТ. …
РАЗДЕЛЯЙТЕ РАСХОДЫ НА ТЕХНИЧЕСКОЕ ОБСЛУЖИВАНИЕ. …
БУДУЩЕЕ.

Открытый исходный код Google?

В Google мы всегда использовали открытый исходный код для инноваций. Мы хотим что-то вернуть; нам нравится быть частью сообщества. Мы часто выпускаем код, чтобы продвигать отрасль вперед или делиться лучшими практиками, которые мы разработали.

Это бесплатная операционная система с открытым исходным кодом?

Debian — это бесплатная Unix-подобная операционная система с открытым исходным кодом, которая возникла в результате проекта Debian, запущенного в 1993 году Яном Мердоком. Это одна из первых операционных систем на базе ядра Linux и FreeBSD. Стабильная версия 1.1, выпущенная в июне 1996 года, известна как самая популярная версия для ПК и сетевых серверов.

Windows


Developer	Microsoft
Source model	Closed-source Source-available (through Shared Source Initiative)
Initial release	November 20, 1985; 37 years ago
Latest release	22H2 (10.0.22621.1194) (January 26, 2023; 10 days ago^[1]) [±]
Latest preview	Release Preview Channel 22H2 (10.0.22621.1194) (January 26, 2023; 10 days ago^[2]^[3]) [±] Beta Channel 22H2 (10.0.22623.1250) (February 2, 2023; 3 days ago^[4]) [±] Dev Channel 10.0.25290.1000 (February 1, 2023; 4 days ago^[5]) [±]
Marketing target	Personal computing
Available in	110 languages
Update method	Windows Update Microsoft Store Windows Server Update Services (WSUS)
Package manager	Windows Installer (.msi, .msix, .msp), Microsoft Store (.appx, .appxbundle),^[6] Windows Package Manager
Platforms	IA-32, x86-64, ARM, ARM64 Previously: 16-bit x86, DEC Alpha, MIPS, PowerPC, Itanium
Kernel type	Windows NT family: Hybrid Windows Embedded Compact/Windows CE: Hybrid Windows 9x and earlier: Monolithic (MS-DOS)
Default user interface	Windows shell
License	Proprietary commercial software
Official website	microsoft.com/windows

Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for servers, and Windows IoT for embedded systems. Defunct Windows families include Windows 9x, Windows Mobile, and Windows Phone.

The first version of Windows was released on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs).^[7]

Windows is the most popular desktop operating system in the world, with 75% market share as of April 2022, according to StatCounter.^[8] However, Windows is not the most used operating system when including both mobile and desktop OSes, due to Android’s massive growth.^[9]

As of September 2022, the most recent version of Windows is Windows 11 for consumer PCs and tablets, Windows 11 Enterprise for corporations, and Windows Server 2022 for servers.

Genealogy

By marketing role

Microsoft, the developer of Windows, has registered several trademarks, each of which denotes a family of Windows operating systems that target a specific sector of the computing industry. As of 2014, the following Windows families were being actively developed:

Windows NT: Started as a family of operating systems with Windows NT 3.1, an operating system for server computers and workstations. It now consists of three operating system subfamilies that are released almost at the same time and share the same kernel:
- Windows: The operating system for mainstream personal computers and tablets. The latest version is Windows 11. The main competitor of this family is macOS by Apple for personal computers and iPadOS and Android for tablets (c.f. Usage share of operating systems § Market share by category).
- Windows Server: The operating system for server computers. The latest version is Windows Server 2022. Unlike its client sibling, it has adopted a strong naming scheme. The main competitor of this family is Linux. (c.f. Usage share of operating systems § Market share by category)
- Windows PE: A lightweight version of its Windows sibling, meant to operate as a live operating system, used for installing Windows on bare-metal computers (especially on many computers at once), recovery or troubleshooting purposes. The latest version is Windows PE 10.
Windows IoT (previously Windows Embedded): Initially, Microsoft developed Windows CE as a general-purpose operating system for every device that was too resource-limited to be called a full-fledged computer. Eventually, however, Windows CE was renamed Windows Embedded Compact and was folded under Windows Compact trademark which also consists of Windows Embedded Industry, Windows Embedded Professional, Windows Embedded Standard, Windows Embedded Handheld and Windows Embedded Automotive.^[10]

The following Windows families are no longer being developed:

Windows 9x: An operating system that targeted the consumer market. Discontinued because of suboptimal performance.^{[citation needed]} (PC World called its last version, Windows Me, one of the worst products of all time.^[11]) Microsoft now caters to the consumer market with Windows NT.
Windows Mobile: The predecessor to Windows Phone, it was a mobile phone operating system. The first version was called Pocket PC 2000; the third version, Windows Mobile 2003 is the first version to adopt the Windows Mobile trademark. The last version is Windows Mobile 6.5.
Windows Phone: An operating system sold only to manufacturers of smartphones. The first version was Windows Phone 7, followed by Windows Phone 8, and Windows Phone 8.1. It was succeeded by Windows 10 Mobile, which is now also discontinued.

Version history

The term Windows collectively describes any or all of several generations of Microsoft operating system products. These products are generally categorized as follows:

Early versions

The history of Windows dates back to 1981 when Microsoft started work on a program called «Interface Manager». It was announced in November 1983 (after the Apple Lisa, but before the Macintosh) under the name «Windows», but Windows 1.0 was not released until November 1985.^[12] Windows 1.0 was to compete with Apple’s operating system, but achieved little popularity. Windows 1.0 is not a complete operating system; rather, it extends MS-DOS. The shell of Windows 1.0 is a program known as the MS-DOS Executive. Components included Calculator, Calendar, Cardfile, Clipboard Viewer, Clock, Control Panel, Notepad, Paint, Reversi, Terminal and Write. Windows 1.0 does not allow overlapping windows. Instead all windows are tiled. Only modal dialog boxes may appear over other windows. Microsoft sold as included Windows Development libraries with the C development environment, which included numerous windows samples.^[13]

Windows 2.0 was released in December 1987, and was more popular than its predecessor. It features several improvements to the user interface and memory management.^[14] Windows 2.03 changed the OS from tiled windows to overlapping windows. The result of this change led to Apple Computer filing a suit against Microsoft alleging infringement on Apple’s copyrights (eventually settled in court in Microsoft’s favor in 1993).^[15]^[16] Windows 2.0 also introduced more sophisticated keyboard shortcuts and could make use of expanded memory.

Windows 2.1 was released in two different versions: Windows/286 and Windows/386. Windows/386 uses the virtual 8086 mode of the Intel 80386 to multitask several DOS programs and the paged memory model to emulate expanded memory using available extended memory. Windows/286, in spite of its name, runs on both Intel 8086 and Intel 80286 processors. It runs in real mode but can make use of the high memory area.^{[citation needed]}

In addition to full Windows-packages, there were runtime-only versions that shipped with early Windows software from third parties and made it possible to run their Windows software on MS-DOS and without the full Windows feature set.

The early versions of Windows are often thought of as graphical shells, mostly because they ran on top of MS-DOS and use it for file system services.^[17] However, even the earliest Windows versions already assumed many typical operating system functions; notably, having their own executable file format and providing their own device drivers (timer, graphics, printer, mouse, keyboard and sound). Unlike MS-DOS, Windows allowed users to execute multiple graphical applications at the same time, through cooperative multitasking. Windows implemented an elaborate, segment-based, software virtual memory scheme, which allows it to run applications larger than available memory: code segments and resources are swapped in and thrown away when memory became scarce; data segments moved in memory when a given application had relinquished processor control.

Windows 3.x

Windows 3.0, released in 1990, improved the design, mostly because of virtual memory and loadable virtual device drivers (VxDs) that allow Windows to share arbitrary devices between multi-tasked DOS applications.^[18] Windows 3.0 applications can run in protected mode, which gives them access to several megabytes of memory without the obligation to participate in the software virtual memory scheme. They run inside the same address space, where the segmented memory provides a degree of protection. Windows 3.0 also featured improvements to the user interface. Microsoft rewrote critical operations from C into assembly. Windows 3.0 was the first version of Windows to achieve broad commercial success, selling 2 million copies in the first six months.^[19]^[20]

Versions before Windows 95 had to be installed from floppy disks by end users (or in professional environments with a network installation), here Windows for Workgroups with nine 3.5-inch-disks to be inserted sequentially.

Windows 3.1, made generally available on March 1, 1992, featured a facelift. In August 1993, Windows for Workgroups, a special version with integrated peer-to-peer networking features and a version number of 3.11, was released. It was sold along with Windows 3.1. Support for Windows 3.1 ended on December 31, 2001.^[21]

Windows 3.2, released 1994, is an updated version of the Chinese version of Windows 3.1.^[22] The update was limited to this language version, as it fixed only issues related to the complex writing system of the Chinese language.^[23] Windows 3.2 was generally sold by computer manufacturers with a ten-disk version of MS-DOS that also had Simplified Chinese characters in basic output and some translated utilities.

Windows 9x

The next major consumer-oriented release of Windows, Windows 95, was released on August 24, 1995. While still remaining MS-DOS-based, Windows 95 introduced support for native 32-bit applications, plug and play hardware, preemptive multitasking, long file names of up to 255 characters, and provided increased stability over its predecessors. Windows 95 also introduced a redesigned, object oriented user interface, replacing the previous Program Manager with the Start menu, taskbar, and Windows Explorer shell. Windows 95 was a major commercial success for Microsoft; Ina Fried of CNET remarked that «by the time Windows 95 was finally ushered off the market in 2001, it had become a fixture on computer desktops around the world.»^[24] Microsoft published four OEM Service Releases (OSR) of Windows 95, each of which was roughly equivalent to a service pack. The first OSR of Windows 95 was also the first version of Windows to be bundled with Microsoft’s web browser, Internet Explorer.^[25] Mainstream support for Windows 95 ended on December 31, 2000, and extended support for Windows 95 ended on December 31, 2001.^[26]

Windows 95 was followed up with the release of Windows 98 on June 25, 1998, which introduced the Windows Driver Model, support for USB composite devices, support for ACPI, hibernation, and support for multi-monitor configurations. Windows 98 also included integration with Internet Explorer 4 through Active Desktop and other aspects of the Windows Desktop Update (a series of enhancements to the Explorer shell which were also made available for Windows 95). In May 1999, Microsoft released Windows 98 Second Edition, an updated version of Windows 98. Windows 98 SE added Internet Explorer 5.0 and Windows Media Player 6.2 amongst other upgrades. Mainstream support for Windows 98 ended on June 30, 2002, and extended support for Windows 98 ended on July 11, 2006.^[27]

On September 14, 2000, Microsoft released Windows Me (Millennium Edition), the last DOS-based version of Windows. Windows Me incorporated visual interface enhancements from its Windows NT-based counterpart Windows 2000, had faster boot times than previous versions (which however, required the removal of the ability to access a real mode DOS environment, removing compatibility with some older programs),^[28] expanded multimedia functionality (including Windows Media Player 7, Windows Movie Maker, and the Windows Image Acquisition framework for retrieving images from scanners and digital cameras), additional system utilities such as System File Protection and System Restore, and updated home networking tools.^[29] However, Windows Me was faced with criticism for its speed and instability, along with hardware compatibility issues and its removal of real mode DOS support. PC World considered Windows Me to be one of the worst operating systems Microsoft had ever released, and the fourth worst tech product of all time.^[11]

Windows NT

Version history

Early versions (Windows NT 3.1/3.5/3.51/4.0/2000)

In November 1988, a new development team within Microsoft (which included former Digital Equipment Corporation developers Dave Cutler and Mark Lucovsky) began work on a revamped version of IBM and Microsoft’s OS/2 operating system known as «NT OS/2». NT OS/2 was intended to be a secure, multi-user operating system with POSIX compatibility and a modular, portable kernel with preemptive multitasking and support for multiple processor architectures. However, following the successful release of Windows 3.0, the NT development team decided to rework the project to use an extended 32-bit port of the Windows API known as Win32 instead of those of OS/2. Win32 maintained a similar structure to the Windows APIs (allowing existing Windows applications to easily be ported to the platform), but also supported the capabilities of the existing NT kernel. Following its approval by Microsoft’s staff, development continued on what was now Windows NT, the first 32-bit version of Windows. However, IBM objected to the changes, and ultimately continued OS/2 development on its own.^[30]^[31]

Windows NT was the first Windows operating system based on a hybrid kernel. The hybrid kernel was designed as a modified microkernel, influenced by the Mach microkernel developed by Richard Rashid at Carnegie Mellon University, but without meeting all of the criteria of a pure microkernel.

The first release of the resulting operating system, Windows NT 3.1 (named to associate it with Windows 3.1) was released in July 1993, with versions for desktop workstations and servers. Windows NT 3.5 was released in September 1994, focusing on performance improvements and support for Novell’s NetWare, and was followed up by Windows NT 3.51 in May 1995, which included additional improvements and support for the PowerPC architecture. Windows NT 4.0 was released in June 1996, introducing the redesigned interface of Windows 95 to the NT series. On February 17, 2000, Microsoft released Windows 2000, a successor to NT 4.0. The Windows NT name was dropped at this point in order to put a greater focus on the Windows brand.^[31]

Windows XP

The next major version of Windows NT, Windows XP, was released on October 25, 2001. The introduction of Windows XP aimed to unify the consumer-oriented Windows 9x series with the architecture introduced by Windows NT, a change which Microsoft promised would provide better performance over its DOS-based predecessors. Windows XP would also introduce a redesigned user interface (including an updated Start menu and a «task-oriented» Windows Explorer), streamlined multimedia and networking features, Internet Explorer 6, integration with Microsoft’s .NET Passport services, a «compatibility mode» to help provide backwards compatibility with software designed for previous versions of Windows, and Remote Assistance functionality.^[32]^[33]

At retail, Windows XP was marketed in two main editions: the «Home» edition was targeted towards consumers, while the «Professional» edition was targeted towards business environments and power users, and included additional security and networking features. Home and Professional were later accompanied by the «Media Center» edition (designed for home theater PCs, with an emphasis on support for DVD playback, TV tuner cards, DVR functionality, and remote controls), and the «Tablet PC» edition (designed for mobile devices meeting its specifications for a tablet computer, with support for stylus pen input and additional pen-enabled applications).^[34]^[35]^[36] Mainstream support for Windows XP ended on April 14, 2009. Extended support ended on April 8, 2014.^[37]

After Windows 2000, Microsoft also changed its release schedules for server operating systems; the server counterpart of Windows XP, Windows Server 2003, was released in April 2003.^[31] It was followed in December 2005, by Windows Server 2003 R2.

Windows Vista

After a lengthy development process, Windows Vista was released on November 30, 2006, for volume licensing and January 30, 2007, for consumers. It contained a number of new features, from a redesigned shell and user interface to significant technical changes, with a particular focus on security features. It was available in a number of different editions, and has been subject to some criticism, such as drop of performance, longer boot time, criticism of new UAC, and stricter license agreement. Vista’s server counterpart, Windows Server 2008 was released in early 2008.

Windows 7

On July 22, 2009, Windows 7 and Windows Server 2008 R2 were released as RTM (release to manufacturing) while the former was released to the public 3 months later on October 22, 2009. Unlike its predecessor, Windows Vista, which introduced a large number of new features, Windows 7 was intended to be a more focused, incremental upgrade to the Windows line, with the goal of being compatible with applications and hardware with which Windows Vista was already compatible.^[38] Windows 7 has multi-touch support, a redesigned Windows shell with an updated taskbar with revealable jump lists that contain shortcuts to files frequently used with specific applications and shortcuts to tasks within the application,^[39] a home networking system called HomeGroup,^[40] and performance improvements.

Windows 8 and 8.1

Windows 8, the successor to Windows 7, was released generally on October 26, 2012. A number of significant changes were made on Windows 8, including the introduction of a user interface based around Microsoft’s Metro design language with optimizations for touch-based devices such as tablets and all-in-one PCs. These changes include the Start screen, which uses large tiles that are more convenient for touch interactions and allow for the display of continually updated information, and a new class of apps which are designed primarily for use on touch-based devices. The new Windows version required a minimum resolution of 1024×768 pixels,^[41] effectively making it unfit for netbooks with 800×600-pixel screens.

Other changes include increased integration with cloud services and other online platforms (such as social networks and Microsoft’s own OneDrive (formerly SkyDrive) and Xbox Live services), the Windows Store service for software distribution, and a new variant known as Windows RT for use on devices that utilize the ARM architecture, and a new keyboard shortcut for screenshots.^[42]^[43]^[44]^[45]^[46]^[47]^[48] An update to Windows 8, called Windows 8.1,^[49] was released on October 17, 2013, and includes features such as new live tile sizes, deeper OneDrive integration, and many other revisions. Windows 8 and Windows 8.1 have been subject to some criticism, such as removal of the Start menu.

Windows 10

On September 30, 2014, Microsoft announced Windows 10 as the successor to Windows 8.1. It was released on July 29, 2015, and addresses shortcomings in the user interface first introduced with Windows 8. Changes on PC include the return of the Start Menu, a virtual desktop system, and the ability to run Windows Store apps within windows on the desktop rather than in full-screen mode. Windows 10 is said to be available to update from qualified Windows 7 with SP1, Windows 8.1 and Windows Phone 8.1 devices from the Get Windows 10 Application (for Windows 7, Windows 8.1) or Windows Update (Windows 7).^[50]

In February 2017, Microsoft announced the migration of its Windows source code repository from Perforce to Git. This migration involved 3.5 million separate files in a 300 gigabyte repository.^[51] By May 2017, 90 percent of its engineering team was using Git, in about 8500 commits and 1760 Windows builds per day.^[51]

In June 2021, shortly before Microsoft’s announcement of Windows 11, Microsoft updated their lifecycle policy pages for Windows 10, revealing that support for their last release of Windows 10 will end on October 14, 2025.^[52]^[53]

Windows 11

On June 24, 2021, Windows 11 was announced as the successor to Windows 10 during a livestream. The new operating system was designed to be more user-friendly and understandable. It was released on October 5, 2021.^[54]^[55] As of May 2022, Windows 11 is a free upgrade to Windows 10 users who meet the system requirements.^[56]

Windows 365

In July 2021, Microsoft announced it will start selling subscriptions to virtualized Windows desktops as part of a new Windows 365 service in the following month. It is not a standalone version of Windows, but a web service that provides access to Windows 10 and Windows 11 built on top of Azure Virtual Desktop. The new service will allow for cross-platform usage, aiming to make the operating system available for both Apple and Android users. The subscription service will be accessible through any operating system with a web browser. The new service is an attempt at capitalizing on the growing trend, fostered during the COVID-19 pandemic, for businesses to adopt a hybrid remote work environment, in which «employees split their time between the office and home». As the service will be accessible through web browsers, Microsoft will be able to bypass the need to publish the service through Google Play or the Apple App Store.^[57]^[58]^[59]^[60]^[61]

Microsoft announced Windows 365 availability to business and enterprise customers on August 2, 2021.^[62]

Multilingual support

Multilingual support has been built into Windows since Windows 3.0. The language for both the keyboard and the interface can be changed through the Region and Language Control Panel. Components for all supported input languages, such as Input Method Editors, are automatically installed during Windows installation (in Windows XP and earlier, files for East Asian languages, such as Chinese, and right-to-left scripts, such as Arabic, may need to be installed separately, also from the said Control Panel). Third-party IMEs may also be installed if a user feels that the provided one is insufficient for their needs.

Interface languages for the operating system are free for download, but some languages are limited to certain editions of Windows. Language Interface Packs (LIPs) are redistributable and may be downloaded from Microsoft’s Download Center and installed for any edition of Windows (XP or later) – they translate most, but not all, of the Windows interface, and require a certain base language (the language which Windows originally shipped with). This is used for most languages in emerging markets. Full Language Packs, which translates the complete operating system, are only available for specific editions of Windows (Ultimate and Enterprise editions of Windows Vista and 7, and all editions of Windows 8, 8.1 and RT except Single Language). They do not require a specific base language, and are commonly used for more popular languages such as French or Chinese. These languages cannot be downloaded through the Download Center, but available as optional updates through the Windows Update service (except Windows 8).

The interface language of installed applications is not affected by changes in the Windows interface language. The availability of languages depends on the application developers themselves.

Windows 8 and Windows Server 2012 introduces a new Language Control Panel where both the interface and input languages can be simultaneously changed, and language packs, regardless of type, can be downloaded from a central location. The PC Settings app in Windows 8.1 and Windows Server 2012 R2 also includes a counterpart settings page for this. Changing the interface language also changes the language of preinstalled Windows Store apps (such as Mail, Maps and News) and certain other Microsoft-developed apps (such as Remote Desktop). The above limitations for language packs are however still in effect, except that full language packs can be installed for any edition except Single Language, which caters to emerging markets.

Platform support

Windows NT included support for several platforms before the x86-based personal computer became dominant in the professional world. Windows NT 4.0 and its predecessors supported PowerPC, DEC Alpha and MIPS R4000 (although some of the platforms implement 64-bit computing, the OS treated them as 32-bit). Windows 2000 dropped support for all platforms, except the third generation x86 (known as IA-32) or newer in 32-bit mode. The client line of Windows NT family still runs on IA-32 but the Windows Server line ceased supporting this platform with the release of Windows Server 2008 R2.

With the introduction of the Intel Itanium architecture (IA-64), Microsoft released new versions of Windows to support it. Itanium versions of Windows XP and Windows Server 2003 were released at the same time as their mainstream x86 counterparts. Windows XP 64-Bit Edition, released in 2005, is the last Windows client operating systems to support Itanium. Windows Server line continues to support this platform until Windows Server 2012; Windows Server 2008 R2 is the last Windows operating system to support Itanium architecture.

On April 25, 2005, Microsoft released Windows XP Professional x64 Edition and Windows Server 2003 x64 Editions to support x86-64 (or simply x64), the 64-bit version of x86 architecture. Windows Vista was the first client version of Windows NT to be released simultaneously in IA-32 and x64 editions. x64 is still supported.

An edition of Windows 8 known as Windows RT was specifically created for computers with ARM architecture and while ARM is still used for Windows smartphones with Windows 10, tablets with Windows RT will not be updated. Starting from Windows 10 Fall Creators Update (version 1709) and later includes support for ARM-based PCs.^[63]

Windows 11 is the first version to drop support for 32-bit hardware.^[56]

Windows CE

Windows CE (officially known as Windows Embedded Compact), is an edition of Windows that runs on minimalistic computers, like satellite navigation systems and some mobile phones. Windows Embedded Compact is based on its own dedicated kernel, dubbed Windows CE kernel. Microsoft licenses Windows CE to OEMs and device makers. The OEMs and device makers can modify and create their own user interfaces and experiences, while Windows CE provides the technical foundation to do so.

Windows CE was used in the Dreamcast along with Sega’s own proprietary OS for the console. Windows CE was the core from which Windows Mobile was derived. Its successor, Windows Phone 7, was based on components from both Windows CE 6.0 R3 and Windows CE 7.0. Windows Phone 8 however, is based on the same NT-kernel as Windows 8.

Windows Embedded Compact is not to be confused with Windows XP Embedded or Windows NT 4.0 Embedded, modular editions of Windows based on Windows NT kernel.

Xbox OS

Xbox OS is an unofficial name given to the version of Windows that runs on Xbox consoles.^[64] From Xbox One onwards it is an implementation with an emphasis on virtualization (using Hyper-V) as it is three operating systems running at once, consisting of the core operating system, a second implemented for games and a more Windows-like environment for applications.^[65]
Microsoft updates Xbox One’s OS every month, and these updates can be downloaded from the Xbox Live service to the Xbox and subsequently installed, or by using offline recovery images downloaded via a PC.^[66] It was originally based on NT 6.2 (Windows kernel, and the latest version runs on an NT 10.0 base. This system is sometimes referred to as «Windows 10 on Xbox One» or «OneCore».^[67]^[68]
Xbox One and Xbox Series operating systems also allow limited (due to licensing restrictions and testing resources) backward compatibility with previous generation hardware,^[69] and the Xbox 360’s system is backwards compatible with the original Xbox.^[70]

Version control system

Up to and including every version before Windows 2000, Microsoft used an in-house version control system named Source Library Manager (SLM). Shortly after Windows 2000 was released, Microsoft switched to a fork of Perforce named Source Depot.^[71] This system was used up until 2017 once the system couldn’t keep up with the size of Windows. Microsoft had begun to integrate Git into Team Foundation Server in 2013, but Windows continued to rely on Source Depot.^{[citation needed]} The Windows code was divided among 65 different repositories with a kind of virtualization layer to produce unified view of all of the code.

In 2017 Microsoft announced that it would start using Git, an open source version control system created by Linus Torvalds and in May 2017 they reported that has completed migration into the Git repository.^[72]^[73]^[51]

VFSForGit

Because of its large, decades-long history, however, the Windows codebase is not especially well suited to the decentralized nature of Linux development that Git was originally created to manage.^{[citation needed]} Each Git repository contains a complete history of all the files, which proved unworkable for Windows developers because cloning the whole repository takes several hours.^{[citation needed]} Microsoft has been working on a new project called the Virtual File System for Git (VFSForGit) to address these challenges.^[73]

In 2021 the VFS for Git has been superseded by Scalar.^[74]

Timeline of releases

Version market share
As a percentage of desktop and laptop systems using Windows,^[79] according to StatCounter data from October 2022.^[80]

Use of Windows 10 has exceeded Windows 7 globally since early 2018.^[81]

For desktop and laptop computers, according to Net Applications and StatCounter, which track the use of operating systems in devices that are active on the Web, Windows was the most used operating-system family in August 2021, with around 91% usage share according to Net Applications^[82] and around 76% usage share according to StatCounter.^[83]

Including personal computers of all kinds (e.g., desktops, laptops, mobile devices, and game consoles), Windows OSes accounted for 32.67% of usage share in August 2021, compared to Android (highest, at 46.03%), iOS’s 13.76%, iPadOS’s 2.81%, and macOS’s 2.51%, according to Net Applications^[84] and 30.73% of usage share in August 2021, compared to Android (highest, at 42.56%), iOS/iPadOS’s 16.53%, and macOS’s 6.51%, according to StatCounter.^[85]

Those statistics do not include servers (including so-called cloud computing, where Microsoft is known not to be a leader, with Linux used more than Windows), as Net Applications and StatCounter use web browsing as a proxy for all use.

Security

This section needs to be updated. Please help update this article to reflect recent events or newly available information. (May 2020)

Early versions of Windows were designed at a time where malware and networking were less common, and had few built-in security features; they did not provide access privileges to allow a user to prevent other users from accessing their files, and they did not provide memory protection to prevent one process from reading or writing another process’s address space or to prevent a process from code or data used by privileged-mode code.

While the Windows 9x series offered the option of having profiles for multiple users, it had no concept of access privileges, allowing any user to edit others’ files. In addition, while it ran separate 32-bit applications in separate address spaces, protecting an application’s code and data from being read or written by another application, it did not protect the first megabyte of memory from userland applications for compatibility reasons. This area of memory contains code critical to the functioning of the operating system, and by writing into this area of memory an application can crash or freeze the operating system. This was a source of instability as faulty applications could accidentally write into this region, potentially corrupting important operating system memory, which usually resulted in some form of system error and halt.^[86]

Windows NT was far more secure, implementing access privileges and full memory protection, and, while 32-bit programs meeting the DoD’s C2 security rating,^[87] yet these advantages were nullified by the fact that, prior to Windows Vista, the default user account created during the setup process was an administrator account; the user, and any program the user launched, had full access to the machine. Though Windows XP did offer an option of turning administrator accounts into limited accounts, the majority of home users did not do so, partially due to the number of programs which required administrator rights to function properly. As a result, most home users still ran as administrator all the time. These architectural flaws, combined with Windows’s very high popularity, made Windows a frequent target of computer worm and virus writers.^[88]^[89]

Furthermore, although Windows NT and its successors are designed for security (including on a network) and multi-user PCs, they were not initially designed with Internet security in mind as much, since, when it was first developed in the early 1990s, Internet use was less prevalent.^[90]

In a 2002 strategy memo entitled «Trustworthy computing» sent to every Microsoft employee, Bill Gates declared that security should become Microsoft’s highest priority.^[91]^[92]

Windows Vista introduced a privilege elevation system called User Account Control.^[93] When logging in as a standard user, a logon session is created and a token containing only the most basic privileges is assigned. In this way, the new logon session is incapable of making changes that would affect the entire system. When logging in as a user in the Administrators group, two separate tokens are assigned. The first token contains all privileges typically awarded to an administrator, and the second is a restricted token similar to what a standard user would receive. User applications, including the Windows shell, are then started with the restricted token, resulting in a reduced privilege environment even under an Administrator account. When an application requests higher privileges or «Run as administrator» is clicked, UAC will prompt for confirmation and, if consent is given (including administrator credentials if the account requesting the elevation is not a member of the administrators group), start the process using the unrestricted token.^[94]

Leaked documents published by WikiLeaks, codenamed Vault 7 and dated from 2013 to 2016, detail the capabilities of the CIA to perform electronic surveillance and cyber warfare,^[95] such as the ability to compromise operating systems such as Windows.^[96]

In August 2019, computer experts reported that the BlueKeep security vulnerability, CVE-2019-0708, that potentially affects older unpatched Windows versions via the program’s Remote Desktop Protocol, allowing for the possibility of remote code execution, may now include related flaws, collectively named DejaBlue, affecting newer Windows versions (i.e., Windows 7 and all recent versions) as well.^[97] In addition, experts reported a Microsoft security vulnerability, CVE-2019-1162, based on legacy code involving Microsoft CTF and ctfmon (ctfmon.exe), that affects all Windows versions from Windows XP to the then most recent Windows 10 versions; a patch to correct the flaw is currently available.^[98]

Microsoft releases security patches through its Windows Update service approximately once a month (usually the second Tuesday of the month), although critical updates are made available at shorter intervals when necessary.^[99] Versions subsequent to Windows 2000 SP3 and Windows XP implemented automatic download and installation of updates, substantially increasing the number of users installing security updates.^[100]

Today, Windows integrates the Windows Defender antivirus, which is seen as one of the best available.^[101] Windows also implements Secure Boot, Control Flow Guard, ransomware protection, BitLocker disk encryption, a firewall, and Windows SmartScreen.

File permissions

All Windows versions from Windows NT 3 have been based on a file system permission system referred to as AGDLP (Accounts, Global, Domain Local, Permissions) in which file permissions are applied to the file/folder in the form of a ‘local group’ which then has other ‘global groups’ as members. These global groups then hold other groups or users depending on different Windows versions used. This system varies from other vendor products such as Linux and NetWare due to the ‘static’ allocation of permission being applied directly to the file or folder. However using this process of AGLP/AGDLP/AGUDLP allows a small number of static permissions to be applied and allows for easy changes to the account groups without reapplying the file permissions on the files and folders.

Alternative implementations

Owing to the operating system’s popularity, a number of applications have been released that aim to provide compatibility with Windows applications, either as a compatibility layer for another operating system, or as a standalone system that can run software written for Windows out of the box. These include:

Wine – a free and open-source implementation of the Windows API, allowing one to run many Windows applications on x86-based platforms, including UNIX, Linux and macOS. Wine developers refer to it as a «compatibility layer»^[102] and use Windows-style APIs to emulate Windows environment.
- CrossOver – a Wine package with licensed fonts. Its developers are regular contributors to Wine.
- Proton – A fork of Wine by Steam to run Windows games on Linux and other Unix-like OS.
ReactOS – an open-source OS intended to run the same software as Windows, originally designed to simulate Windows NT 4.0, now aiming at Windows 7 compatibility. It has been in the development stage since 1996.

References

^ «January 26, 2023—KB5022360 (OS Build 22621.1194) Preview». Microsoft Support. Microsoft.
^ «Releasing Windows 11 Build 22621.1192 to the Release Preview Channel». Windows Insider Blog. January 17, 2023.
^ «January 26, 2023—KB5022360 (OS Build 22621.1194) Preview». Microsoft Support. Microsoft.
^ «Announcing Windows 11 Insider Preview Build 22621.1250 and 22623.1250». Windows Insider Blog. February 2, 2023.
^ «Announcing Windows 11 Insider Preview Build 25290». Windows Insider Blog. February 1, 2023.
^ «App packages and deployment (Windows Store apps) (Windows)». Msdn.microsoft.com. Archived from the original on March 30, 2014. Retrieved April 5, 2014.
^ Bellis, Mary (October 4, 2019). «The Unusual History of Microsoft Windows». Retrieved January 13, 2023.
^ «Desktop Operating System Market Share Worldwide». StatCounter Global Stats.
^ Keizer, Gregg (July 14, 2014). «Microsoft gets real, admits its device share is just 14%». Computerworld. IDG. Archived from the original on August 21, 2016. [Microsoft’s chief operating officer] Turner’s 14% came from a new forecast released last week by Gartner, which estimated Windows’ share of the shipped device market last year was 14%, and would decrease slightly to 13.7% in 2014. Android will dominate, Gartner said, with a 48% share this year
^ «RTOS: Embedded Real Time Operating Systems». microsoft.com. Microsoft. Archived from the original on December 15, 2014. Retrieved November 7, 2014.
^ ^a ^b «The 25 Worst Tech Products of All Time». PC World. IDG. May 26, 2006. Retrieved January 7, 2023.
^ «A history of Windows — Microsoft Windows». windows.microsoft.com. Archived from the original on June 11, 2016. Retrieved January 7, 2023.
^ Microsoft C 5.0: C Language Reference Guide. Microsoft. 1987. pp. 250–267.
^ «A legacy of Windows, part 1: Windows 1-2-3 – TechRepublic». TechRepublic. Archived from the original on March 27, 2017. Retrieved March 26, 2017.
^ «The Apple vs. Microsoft GUI Lawsuit». 2006. Archived from the original on March 4, 2008. Retrieved March 12, 2008.
^ «Apple Computer, Inc. v. MicroSoft Corp., 35 F.3d 1435 (9th Cir. 1994)». Archived from the original on December 14, 2007. Retrieved March 12, 2008.
^ «Windows Evolution». Soft32.com News. Archived from the original on February 8, 2008.
^ «Windows 3.0, released in 1990». www.coursehero.com/. Retrieved October 20, 2022.{{cite web}}: CS1 maint: url-status (link)
^ «Chronology of Personal Computer Software». Archived from the original on February 11, 2012.
^ «Microsoft Company». Archived from the original on May 14, 2008.
^ «Windows 3.1 Standard Edition Support Lifecycle». Archived from the original on January 12, 2012. Retrieved January 3, 2011.
^ «Microsoft Windows Simplified Chinese 3.2 Upgrade Is Available». Microsoft Support. Microsoft. Archived from the original on November 8, 2006.
^ «Microsoft Windows Simplified Chinese 3.2 Upgrade Is Available». Microsoft. October 30, 2003. Archived from the original on May 24, 2011. Retrieved September 4, 2009.
^ «Windows 95 turns 15: Has Microsoft’s OS peaked?». CNET/CNN Tech. August 25, 2010. Archived from the original on August 26, 2010. Retrieved August 22, 2012.
^ «Microsoft Internet Explorer Web Browser Available on All Major Platforms, Offers Broadest International Support». News Center. San Jose, California: Microsoft. April 30, 1996. Archived from the original on January 15, 2008. Retrieved February 14, 2011.
^ «Windows 95 Support Lifecycle». Microsoft. Archived from the original on November 22, 2012. Retrieved January 3, 2011.
^ «Windows 98 Standard Edition Support Lifecycle». Microsoft. Archived from the original on November 22, 2012. Retrieved January 3, 2011.
^ «Improving «Cold Boot» Time for System Manufacturers». Microsoft. December 4, 2001. Archived from the original on February 13, 2010. Retrieved August 26, 2010.
^ «Windows Millennium Edition: All About Me». PC World. Archived from the original on August 1, 2013. Retrieved May 21, 2013.
^ Custer, Helen (1993). Inside Windows NT. Redmond: Microsoft Press. ISBN 1-55615-481-X.
^ ^a ^b ^c Thurrott, Paul (January 24, 2003). «Windows Server 2003: The Road To Gold – Part One: The Early Years». Archived from the original on January 1, 2005. Retrieved May 28, 2012.
^ «Windows XP review». CNET. Archived from the original on May 26, 2013. Retrieved May 24, 2013.
^ «Windows XP Program Compatibility Wizard». ServerWatch. March 12, 2002. Retrieved November 13, 2021.
^ David Coursey (October 25, 2001). «The 10 top things you MUST know about Win XP». ZDNet. Archived from the original on April 3, 2009. Retrieved July 22, 2008.
^ David Coursey (August 31, 2001). «Your top Windows XP questions answered! (Part One)». ZDNet. CNET Networks. Archived from the original on December 19, 2007. Retrieved January 3, 2011.
^ «A Look at Freestyle and Mira». Paul Thurrott’s SuperSite for Windows. Penton. September 3, 2002. Retrieved January 3, 2011.^{[permanent dead link]}
^ «Windows XP Professional Lifecycle Support». Archived from the original on February 27, 2013. Retrieved January 3, 2011.
^ Nash, Mike (October 28, 2008). «Windows 7 Unveiled Today at PDC 2008». Windows Experience Blog. Microsoft. Archived from the original on November 1, 2008. Retrieved November 11, 2008.
^ Kiriaty, Yochay; Goldshtein, Sasha (2009). «Windows 7 Taskbar APIs». docs.microsoft.com. Retrieved August 21, 2021.
^ LeBlanc, Brandon (October 28, 2008). «How Libraries & HomeGroup Work Together in Windows 7». Windows Experience Blog. Microsoft. Archived from the original on November 2, 2008. Retrieved November 11, 2008.
^ «New Windows 8 hardware specs hint at 7-inch tablets and a Microsoft Reader». ZDNet. Retrieved March 29, 2013.
^ Paul, Ian (July 5, 2021). «How to Take Screenshots in Windows 10, 8, and 7».
^ Case, Loyd. «Test Driving Windows 8 RTM». PC World. IDG. Retrieved January 7, 2023.
^ Rosoff, Matt. «Here’s Everything You Wanted To Know About Microsoft’s Upcoming iPad Killers». Business Insider. Archived from the original on January 22, 2013. Retrieved February 10, 2012.
^ «Announcing the Windows 8 Editions». Microsoft. April 16, 2012. Archived from the original on April 18, 2012. Retrieved April 17, 2012.
^ «Building Windows for the ARM processor architecture». Microsoft. Archived from the original on November 26, 2012. Retrieved November 21, 2012.
^ «Microsoft talks Windows Store features, Metro app sandboxing for Windows 8 developers». The Verge. Vox Media. May 17, 2012. Archived from the original on September 10, 2012. Retrieved September 8, 2012.
^ Miller, Michael. «Build: More Details On Building Windows 8 Metro Apps». PC Magazine. Archived from the original on February 17, 2012. Retrieved February 10, 2012.
^ «Windows 8.1 now available!». blogs.windows.com. Archived from the original on October 19, 2013. Retrieved October 31, 2013.
^ «Announcing Windows 10 – Windows Blog». September 30, 2014. Archived from the original on September 10, 2015. Retrieved September 30, 2014.
^ ^a ^b ^c Bright, Peter (May 24, 2017). «Windows switch to Git almost complete: 8,500 commits and 1,760 builds each day». Ars Technica. Condé Nast. Archived from the original on May 24, 2017.
^ ^a ^b «Window 10 Home and Pro Lifecycle». Microsoft. Retrieved July 2, 2021.
^ ^a ^b «Window 10 Enterprise and Education Lifecycle». Microsoft. Retrieved July 2, 2021.
^ Cox, George. «Windows 11 release date is October 5». The Spectrum. Retrieved September 18, 2021.
^ Warren, Tom (June 24, 2021). «Microsoft announces Windows 11, with a new design, Start menu, and more». The Verge. Retrieved June 24, 2021.
^ ^a ^b «Windows 11 Specs and System Requirements». Microsoft. Archived from the original on May 31, 2022. Retrieved May 31, 2022.
^ Foley, Mary Jo (July 14, 2021). «Microsoft brings Windows to the cloud with Windows 365 and Cloud PC». ZDNet. Retrieved July 14, 2021.
^ Tilley, Aaron (July 14, 2021). «Microsoft Aims to Put Windows in Hands of Apple, Android Users Through Hybrid Work». The Wall Street Journal. ISSN 0099-9660.
^ Higgins, Tim (June 23, 2021). «Apple’s Fight for Control Over Apps Moves to Congress and EU». The Wall Street Journal. ISSN 0099-9660.
^ «Microsoft unveils Windows 365, a Windows 10 PC in the cloud». Engadget. Retrieved July 15, 2021.
^ «Windows 365 Cloud PC | Microsoft». www.microsoft.com. Retrieved July 15, 2021.
^ Hill, Paul (August 2, 2021). «Microsoft announces the general availability of Windows 365». Neowin. Retrieved August 2, 2021.
^ Bott, Ed (October 7, 2019). «Windows 10 on Arm: What you need to know before you buy a Surface Pro X». ZDNet.
^ Anand Lal Shimpi. «The Xbox One – Mini Review & Comparison to Xbox 360/PS4». anandtech.com. Archived from the original on October 12, 2014. Retrieved October 21, 2014.
^ «Xbox One: Hardware and software specs detailed and analyzed – Three operating systems in one». ExtremeTech. Archived from the original on November 16, 2013. Retrieved December 1, 2013.
^ «How to use the Offline System Update Diagnostic Tool on Xbox One». Xbox Official Site. Microsoft. Archived from the original on April 27, 2021. Retrieved November 30, 2013.
^ «Xbox One Is «Literally a Windows Device»«. GameSpot. Archived from the original on December 27, 2015.
^ «New Xbox One Update Will Make Some Functionality 50 Percent Faster». GameSpot. Archived from the original on February 2, 2016.
^ Tom Warren (June 16, 2015). «Xbox One dashboard update includes a huge new design and Cortana». The Verge. Vox Media. Archived from the original on July 8, 2017.
^ Eric Qualls. «Xbox 360 and Xbox Games Backwards Compatibility». About.com Tech. Archived from the original on September 28, 2015.
^ Chen, Raymond (January 22, 2018). «The history of change-packing tools at Microsoft (so far)». The Old New Thing. Retrieved April 17, 2022.
^ «The largest Git repo on the planet». Brian Harry’s Blog. May 24, 2017. Retrieved October 8, 2021.
^ ^a ^b Bright, Peter (February 6, 2017). «Microsoft hosts the Windows source in a monstrous 300GB Git repository». Ars Technica. Archived from the original on December 26, 2017. Retrieved December 26, 2017.
^ Frequently Asked Questions | VFS for Git on GitHub
^ «Microsoft Support Lifecycle». Microsoft. Archived from the original on October 11, 2008.
^ Chen, Raymond (July 22, 2019). «What was the code name for Windows 7?». The Old New Thing.
^ «Products Ending Support in 2024 – Microsoft Build». Microsoft. September 20, 2022.
^ «Products Ending Support in 2025 – Microsoft Build». Microsoft. September 20, 2022.
^ «Frequently Asked Questions». StatCounter. «Are laptops included in the desktop platform?».
^ «Desktop Windows Version Market Share Worldwide». StatCounter.
^ «Desktop Windows Version Market Share Worldwide | StatCounter Global Stats». StatCounter Global Stats. Retrieved November 24, 2019.
^ «Desktop Operating system market share: August 2021». Net Applications.
^ «Desktop Operating System Market Share Worldwide: August 2021». StatCounter.
^ «Operating system market share: August 2021». Net Applications.
^ «Operating System Market Share Worldwide: August 2021». StatCounter.
^ «Transcript: Chat with Ed Bott and Carl Siechert, Co-Authors of Microsoft Windows XP Inside Out». microsoft.com. Microsoft. November 21, 2001. Archived from the original on September 18, 2004. Retrieved April 20, 2019.
^ Russinovich, Mark (April 30, 1998). «Windows NT Security, Part 1». ITPro Today: IT News, How-Tos, Trends, Case Studies, Career Tips, More. Retrieved September 29, 2022.
^ Bruce Schneier (June 15, 2005). «Crypto-Gram Newsletter». Counterpane Internet Security, Inc. Archived from the original on June 6, 2007. Retrieved April 22, 2007.
^ Andy Patrizio (April 27, 2006). «Linux Malware On The Rise». InternetNews. QuinStreet. Archived from the original on February 5, 2012. Retrieved January 3, 2011.
^ «Telephones and Internet Users by Country, 1990 and 2005». Information Please Database. Archived from the original on May 22, 2009. Retrieved June 9, 2009.
^ Gates, Bill. «Bill Gates: Trustworthy Computing». Wired. ISSN 1059-1028. Retrieved September 29, 2022.
^ Verloy, Filip. «20 Years After Bill Gates’ Trustworthy Computing Memo, Cybersecurity Issues Are An Even Harder Problem». nonamesecurity.com. Retrieved September 29, 2022.
^ Northrup, Tony (June 1, 2005). «Windows Vista Security and Data Protection Improvements». TechNet. Microsoft Docs. Retrieved October 20, 2021. In Windows Vista, the User Account Control (UAC) initiative introduces fundamental operating system changes to enhance the experience for the non-administrative user.
^ Kenny Kerr (September 29, 2006). «Windows Vista for Developers – Part 4 – User Account Control». Archived from the original on March 29, 2007. Retrieved March 15, 2007.
^ Greenberg, Andy (March 7, 2017). «How the CIA Can Hack Your Phone, PC, and TV (Says WikiLeaks)». WIRED.
^ «Vault 7: Wikileaks reveals details of CIA’s hacks of Android, iPhone Windows, Linux, MacOS, and even Samsung TVs». Computing. March 7, 2017.
^ Greenberg, Andy (August 13, 2019). «DejaBlue: New BlueKeep-Style Bugs Renew The Risk Of A Windows worm». wired. Retrieved August 15, 2019.
^ Seals, Tara (August 14, 2019). «20-Year-Old Bug in Legacy Microsoft Code Plagues All Windows Users». ThreatPost.com. Retrieved August 15, 2019.
^ Ryan Naraine (June 8, 2005). «Microsoft’s Security Response Center: How Little Patches Are Made». eWeek. Ziff Davis Enterprise. Retrieved January 3, 2011.
^ John Foley (October 20, 2004). «Windows XP SP2 Distribution Surpasses 100 Million». InformationWeek. UBM TechWeb. Archived from the original on May 27, 2010. Retrieved January 3, 2011.
^ «Test antivirus software for Windows 10 – June 2022». www.av-test.org. Retrieved September 29, 2022.
^ «Wine». Winehq.org. Archived from the original on April 4, 2014. Retrieved April 5, 2014.

Windows


Developer	Microsoft
Source model	Closed-source Source-available (through Shared Source Initiative)
Initial release	November 20, 1985; 37 years ago
Latest release	22H2 (10.0.22621.1194) (January 26, 2023; 10 days ago^[1]) [±]
Latest preview	Release Preview Channel 22H2 (10.0.22621.1194) (January 26, 2023; 10 days ago^[2]^[3]) [±] Beta Channel 22H2 (10.0.22623.1250) (February 2, 2023; 3 days ago^[4]) [±] Dev Channel 10.0.25290.1000 (February 1, 2023; 4 days ago^[5]) [±]
Marketing target	Personal computing
Available in	110 languages
Update method	Windows Update Microsoft Store Windows Server Update Services (WSUS)
Package manager	Windows Installer (.msi, .msix, .msp), Microsoft Store (.appx, .appxbundle),^[6] Windows Package Manager
Platforms	IA-32, x86-64, ARM, ARM64 Previously: 16-bit x86, DEC Alpha, MIPS, PowerPC, Itanium
Kernel type	Windows NT family: Hybrid Windows Embedded Compact/Windows CE: Hybrid Windows 9x and earlier: Monolithic (MS-DOS)
Default user interface	Windows shell
License	Proprietary commercial software
Official website	microsoft.com/windows

The first version of Windows was released on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs).^[7]

As of September 2022, the most recent version of Windows is Windows 11 for consumer PCs and tablets, Windows 11 Enterprise for corporations, and Windows Server 2022 for servers.