The first Windows NT-based operating system to receive AGP support was Windows NT 4. 0 with service pack 3, introduced in 1997.

Active Directory was previewed in 1999, released first with Windows NT server.

** Windows NT and successors have various subsystems to run legacy applications.

* The Solaris API for handling access control lists ( ACLs ) is supported and maps to the Windows NT ACL system.

Cygwin began in 1995 as a project of Steve Chamberlain, a Cygnus engineer who observed that Windows NT and 95 used COFF as their object file format, and that GNU already included support for x86 and COFF, and the C library newlib.

BIND was ported to the Windows NT platform in the early 1990s.

Operating systems that supported Alpha included OpenVMS ( previously known as OpenVMS AXP ), Tru64 UNIX ( previously known as DEC OSF / 1 AXP and Digital UNIX ), Windows NT ( until 4. 0 SP6 and Windows 2000 RC1 ), GNU / Linux ( Debian GNU / Linux, Gentoo Linux and Red Hat Linux ), BSD UNIX ( NetBSD, OpenBSD and FreeBSD up to 6. x ), as well as the L4Ka :: Pistachio kernel.

* Installable File System ( IFS ) – a filesystem API for IBM OS / 2 and Microsoft Windows NT

For example, EDLIN in early MS-DOS versions and 32-bit versions of Windows NT has a somewhat similar syntax, and text editors in many MUDs ( LPMud and descendants, for example ) use ed-like syntax.

However, Edlin is included in 32-bit versions of Windows NT, since NTVDM's DOS support is based on MS-DOS version 5. 0.

FCPLib supports Windows NT / 2K / XP, Debian, BSD, Solaris, and Mac OS X.

The Windows NT family started with Windows NT 3. 1 in 1993.

Modern Windows operating system versions are based on the newer Windows NT kernel that was originally intended for OS / 2.

Microsoft is also working to bring Windows NT onto ARM in the next release of Windows.

With Windows NT 4. 0 in 1996, the shell changed from Program Manager to Windows Explorer.

IBM continued to develop OS / 2, while Microsoft changed the name of its ( as yet unreleased ) OS / 2 3. 0 to Windows NT.

Both retained the rights to use OS / 2 and Windows technology developed up to the termination of the agreement ; Windows NT, however, was to be written anew, mostly independently ( see below ).

After applying the patch the Windows 95 system became Windows 95 version 4. 00. 950 B.

Operating systems such as Microsoft Windows that display hard drive sizes using the customary binary prefix " GB " ( as it is used for RAM ) would display this as 279. 4 GB ( meaning 279. 4 × 1024 < sup > 3 </ sup >, or 279. 4 ×).

The 3. x and 4. x family includes Windows 3. 0, Windows 3. 1x, Windows 95, Windows 98, and Windows Me.

* Windows 95 C-( OSR2. 5 ) included all the above features, plus IE 4. 0.

Windows NT 4. 0 was the successor of 3. 51 ( 1995 ) and 3. 5 ( 1994 ).

Microsoft released Windows NT 4. 0 to manufacturing in July 1996, one year after the release of Windows 95.

Windows NT 4. 0 came in four versions:

* Windows NT 4. 0 Workstation

* Windows NT 4. 0 Server

* Windows NT 4. 0 Server, Enterprise Edition ( includes support for 8-way SMP and clustering )

* Windows NT 4. 0 Terminal Server

1993 saw a release for PCs with Windows 3. 1 as part of the original Microsoft Arcade package.

Also, a new version of Asteroids was developed for PlayStation, Nintendo 64, Windows, and the Game Boy Color in the late 1990s.

Since Java's bytecode is platform-independent, Java applets can be executed by browsers running under many platforms, including Windows, Unix, Mac OS, and Linux.

* A Windows Algol Algol running on Vista win64 system by Marcel van der Veer, Algol 68 Genie works on normal Windows up through the latest.

Three emulators of the machine exist, ElectrEm for Windows / Linux / Mac OS X, Elkulator for Windows / DOS and the Multi-system emulator MESS.

Tridgell was a major developer of the Samba software, analysing the Server Message Block protocol used for workgroup and network file sharing by Microsoft Windows products.

There is one major uncompressed audio format, PCM, which is usually stored in a. wav file on Windows or in a. aiff file on Mac OS.

* wav – standard audio file container format used mainly in Windows PCs.

* wma – the popular Windows Media Audio format owned by Microsoft.

Microsoft first introduced AGP support into Windows 95 OEM Service Release 2 ( OSR2 version 1111 or 950B ) via the USB SUPPLEMENT to OSR2 patch.

* Microsoft Windows contains application compatibility shims to make the platform compatible with most software from earlier 32-bit and 16-bit versions ( e. g. Civilization ( circa 1991, designed for Windows 3. 0 ) running on Windows Vista ).

Device drivers, particularly on Microsoft Windows platforms, can run in kernel-mode ( Ring 0 on x86 CPUs ) or in user-mode ( Ring 3 on x86 CPUs ).

* Rundata 2. 0 for Windows.

Version 0. 7. 5 also shipped with a new version of the Windows installer.

A Microsoft Windows ( 2000 or newer ) port was made available starting with the 2. 2. 0 series.

The first independent version of Microsoft Windows, version 1. 0, released on 20 November 1985, achieved little popularity.

Windows 1. 0 was not a complete operating system, but rather an " operating environment " that extended MS-DOS, and shared the latter's inherent flaws and problems.

In the development of Windows 1. 0, Microsoft intentionally limited its borrowing of certain GUI elements from the Macintosh user interface, to comply with its license.

Much of the popularity for Windows 2. 0 came by way of its inclusion as a " run-time version " with Microsoft's new graphical applications, Excel and Word for Windows.

Microsoft Windows scored a significant success with Windows 3. 0, released in May 1990.