Windows is an operating system designed by Microsoft. The operating system is what allows you to use a computer. Windows comes preloaded on most new personal computers (PCs), which helps to make it the most popular operating system in the world.

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.

Microsoft 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.

Name

Windows

Version

2000

Vista

8.1

Release Date

1986-05-14

1987-12-09

1990-05-22

1994-09-21

1995-08-24

1998-06-25

2000-02-17

2001-10-25

2007-01-30

2009-10-22

2012-10-26

2013-10-17

2015-07-29

2021-10-05

Features

Calculator, Paint, and Notepad.

Icons, keyboard shortcuts, color VGA graphics.

File Manager, Recorder, Games & Ms Write.

Multi-boot, multithreading, SMP & CISI.

Redesigned GUI, taskbar & Start button.

Web optimized, networking through VPN.

Outlook, NetMeeting, FAT32, Driver Model.

RDS, Driver Rollback and CD burner.

P shell, Slider, Player, Mail & Dvd writer.

Taskbar, Tray, Ac control & Jump list.

Touchscreen, Language, Live tiles & Onedrive.

Start Bottons, Defender security & Store.

Start menu, Edge, Cortana, Action center.

Widgets, Up security, App store, Team chat.

Linux operating system

Linux® is an open source operating system (OS). An operating system is the software that directly manages a system’s hardware and resources, like CPU, memory, and storage. The OS sits between applications and hardware and makes the connections between all of your software and the physical resources that do the work.

The command line is your direct access to a computer. It's where you ask software to perform hardware actions that point-and-click graphical user interfaces (GUIs) simply can't ask.

Command lines are available on many operating systems—proprietary or open source. But it’s usually associated with Linux, because both command lines and open source software, together, give users unrestricted access to their computer.

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